122002200221121 has 24 divisors (see below), whose sum is σ = 197441726162304. Its totient is φ = 71942329366560.

The previous prime is 122002200221101. The next prime is 122002200221159. The reversal of 122002200221121 is 121122002200221.

It is a happy number.

122002200221121 is a `hidden beast` number, since 1 + 2 + 200 + 220 + 0 + 221 + 1 + 21 = 666.

It is not a de Polignac number, because 122002200221121 - 2¹⁹ = 122002199696833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122002200221094 and 122002200221103.

It is not an unprimeable number, because it can be changed into a prime (122002200221101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16653313321 + ... + 16653320646.

It is an arithmetic number, because the mean of its divisors is an integer number (8226738590096).

Almost surely, 2^{122002200221121} is an apocalyptic number.

122002200221121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002200221121 is a deficient number, since it is larger than the sum of its proper divisors (75439525941183).

122002200221121 is a wasteful number, since it uses less digits than its factorization.

122002200221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33306634021 (or 33306634018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122002200221121 its reverse (121122002200221), we get a palindrome (243124202421342).

It can be divided in two parts, 122002200221 and 121, that multiplied together give a palindrome (14762266226741).

The spelling of 122002200221121 in words is "one hundred twenty-two trillion, two billion, two hundred million, two hundred twenty-one thousand, one hundred twenty-one".