1222122102001 has 4 divisors (see below), whose sum is σ = 1222125286372. Its totient is φ = 1222118917632.

The previous prime is 1222122101989. The next prime is 1222122102013. The reversal of 1222122102001 is 1002012212221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1222122101989) and next prime (1222122102013).

It can be written as a sum of positive squares in 2 ways, for example, as 85928128225 + 1136193973776 = 293135^2 + 1065924^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222122102001 - 2⁵ = 1222122101969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222122102301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922656 + ... + 1815361.

It is an arithmetic number, because the mean of its divisors is an integer number (305531321593).

Almost surely, 2^{1222122102001} is an apocalyptic number.

It is an amenable number.

1222122102001 is a deficient number, since it is larger than the sum of its proper divisors (3184371).

1222122102001 is an equidigital number, since it uses as much as digits as its factorization.

1222122102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184370.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222122102001 its reverse (1002012212221), we get a palindrome (2224134314222).

The spelling of 1222122102001 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred two thousand, one".