122002210020021 has 16 divisors (see below), whose sum is σ = 172734778476864. Its totient is φ = 76329799917824.

The previous prime is 122002210020017. The next prime is 122002210020023. The reversal of 122002210020021 is 120020012200221.

It is a cyclic number.

It is not a de Polignac number, because 122002210020021 - 2² = 122002210020017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002210020023) 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, 3446956650 + ... + 3446992043.

It is an arithmetic number, because the mean of its divisors is an integer number (10795923654804).

Almost surely, 2^{122002210020021} is an apocalyptic number.

It is an amenable number.

122002210020021 is a deficient number, since it is larger than the sum of its proper divisors (50732568456843).

122002210020021 is a wasteful number, since it uses less digits than its factorization.

122002210020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893949060.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122002210020021 its reverse (120020012200221), we get a palindrome (242022222220242).

The spelling of 122002210020021 in words is "one hundred twenty-two trillion, two billion, two hundred ten million, twenty thousand, twenty-one".