122012021111021 has 16 divisors (see below), whose sum is σ = 132194335521600. Its totient is φ = 112163640546048.

The previous prime is 122012021110981. The next prime is 122012021111041. The reversal of 122012021111021 is 120111120210221.

It is a cyclic number.

It is not a de Polignac number, because 122012021111021 - 2⁶ = 122012021110957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012021111041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177156995 + ... + 177844383.

It is an arithmetic number, because the mean of its divisors is an integer number (8262145970100).

Almost surely, 2^{122012021111021} is an apocalyptic number.

It is an amenable number.

122012021111021 is a deficient number, since it is larger than the sum of its proper divisors (10182314410579).

122012021111021 is a wasteful number, since it uses less digits than its factorization.

122012021111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930268.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122012021111021 its reverse (120111120210221), we get a palindrome (242123141321242).

The spelling of 122012021111021 in words is "one hundred twenty-two trillion, twelve billion, twenty-one million, one hundred eleven thousand, twenty-one".