1220101122001 has 4 divisors (see below), whose sum is σ = 1220114958832. Its totient is φ = 1220087285172.

The previous prime is 1220101121977. The next prime is 1220101122017. The reversal of 1220101122001 is 1002211010221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220101122001 - 2²¹ = 1220099024849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220101122091) 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, 6785295 + ... + 6962788.

It is an arithmetic number, because the mean of its divisors is an integer number (305028739708).

Almost surely, 2^{1220101122001} is an apocalyptic number.

It is an amenable number.

1220101122001 is a deficient number, since it is larger than the sum of its proper divisors (13836831).

1220101122001 is an equidigital number, since it uses as much as digits as its factorization.

1220101122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836830.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220101122001 its reverse (1002211010221), we get a palindrome (2222312132222).

The spelling of 1220101122001 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred twenty-two thousand, one".