122002110021 has 32 divisors (see below), whose sum is σ = 179011806336. Its totient is φ = 73904476800.

The previous prime is 122002109993. The next prime is 122002110031. The reversal of 122002110021 is 120011200221.

It is not a de Polignac number, because 122002110021 - 2¹³ = 122002101829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122002109979 and 122002110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002110031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9740655 + ... + 9753171.

It is an arithmetic number, because the mean of its divisors is an integer number (5594118948).

Almost surely, 2^122002110021 is an apocalyptic number.

122002110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002110021 is a deficient number, since it is larger than the sum of its proper divisors (57009696315).

122002110021 is a wasteful number, since it uses less digits than its factorization.

122002110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14994 (or 14972 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122002110021 its reverse (120011200221), we get a palindrome (242013310242).

The spelling of 122002110021 in words is "one hundred twenty-two billion, two million, one hundred ten thousand, twenty-one".