122002111121 has 16 divisors (see below), whose sum is σ = 137911939200. Its totient is φ = 106908144000.

The previous prime is 122002111109. The next prime is 122002111129. The reversal of 122002111121 is 121111200221.

It is a cyclic number.

It is not a de Polignac number, because 122002111121 - 2¹⁸ = 122001848977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002111096 and 122002111105.

It is not an unprimeable number, because it can be changed into a prime (122002111129) 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, 126461 + ... + 509898.

It is an arithmetic number, because the mean of its divisors is an integer number (8619496200).

Almost surely, 2^122002111121 is an apocalyptic number.

122002111121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002111121 is a deficient number, since it is larger than the sum of its proper divisors (15909828079).

122002111121 is a wasteful number, since it uses less digits than its factorization.

122002111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637000.

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

Adding to 122002111121 its reverse (121111200221), we get a palindrome (243113311342).

The spelling of 122002111121 in words is "one hundred twenty-two billion, two million, one hundred eleven thousand, one hundred twenty-one".