122102001101021 has 12 divisors (see below), whose sum is σ = 124840701426240. Its totient is φ = 119422174816440.

The previous prime is 122102001101011. The next prime is 122102001101063. The reversal of 122102001101021 is 120101100201221.

It is not a de Polignac number, because 122102001101021 - 2⁴⁶ = 51733256923357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102001100987 and 122102001101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102001101011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15719765 + ... + 22165626.

It is an arithmetic number, because the mean of its divisors is an integer number (10403391785520).

Almost surely, 2^{122102001101021} is an apocalyptic number.

It is an amenable number.

122102001101021 is a deficient number, since it is larger than the sum of its proper divisors (2738700325219).

122102001101021 is an equidigital number, since it uses as much as digits as its factorization.

122102001101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37886944 (or 37886897 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122102001101021 its reverse (120101100201221), we get a palindrome (242203101302242).

The spelling of 122102001101021 in words is "one hundred twenty-two trillion, one hundred two billion, one million, one hundred one thousand, twenty-one".