122210002020121 has 4 divisors (see below), whose sum is σ = 122210056395792. Its totient is φ = 122209947644452.

The previous prime is 122210002020109. The next prime is 122210002020143. The reversal of 122210002020121 is 121020200012221.

It is a happy number.

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 122210002020121 - 2⁷ = 122210002019993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122210002020095 and 122210002020104.

It is not an unprimeable number, because it can be changed into a prime (122210002020151) 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, 23664355 + ... + 28362328.

It is an arithmetic number, because the mean of its divisors is an integer number (30552514098948).

Almost surely, 2^{122210002020121} is an apocalyptic number.

It is an amenable number.

122210002020121 is a deficient number, since it is larger than the sum of its proper divisors (54375671).

122210002020121 is an equidigital number, since it uses as much as digits as its factorization.

122210002020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54375670.

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

Adding to 122210002020121 its reverse (121020200012221), we get a palindrome (243230202032342).

The spelling of 122210002020121 in words is "one hundred twenty-two trillion, two hundred ten billion, two million, twenty thousand, one hundred twenty-one".