122001022010021 has 32 divisors (see below), whose sum is σ = 157351745145600. Its totient is φ = 91786687534080.

The previous prime is 122001022010017. The next prime is 122001022010059. The reversal of 122001022010021 is 120010220100221.

It is not a de Polignac number, because 122001022010021 - 2² = 122001022010017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122001022009978 and 122001022010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001022010081) 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, 295731131 + ... + 296143383.

It is an arithmetic number, because the mean of its divisors is an integer number (4917242035800).

Almost surely, 2^{122001022010021} is an apocalyptic number.

122001022010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122001022010021 is a deficient number, since it is larger than the sum of its proper divisors (35350723135579).

122001022010021 is a wasteful number, since it uses less digits than its factorization.

122001022010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544829.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122001022010021 its reverse (120010220100221), we get a palindrome (242011242110242).

It can be divided in two parts, 1 and 22001022010021, that added together give a palindrome (22001022010022).

The spelling of 122001022010021 in words is "one hundred twenty-two trillion, one billion, twenty-two million, ten thousand, twenty-one".