2222002022121 has 48 divisors (see below), whose sum is σ = 3716453989248. Its totient is φ = 1253047968000.

The previous prime is 2222002022113. The next prime is 2222002022189. The reversal of 2222002022121 is 1212202002222.

2222002022121 is a `hidden beast` number, since 222 + 200 + 2 + 0 + 221 + 21 = 666.

It is not a de Polignac number, because 2222002022121 - 2³ = 2222002022113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222002022094 and 2222002022103.

It is not an unprimeable number, because it can be changed into a prime (2222002022621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1384701 + ... + 2522181.

It is an arithmetic number, because the mean of its divisors is an integer number (77426124776).

Almost surely, 2^{2222002022121} is an apocalyptic number.

2222002022121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2222002022121 is a deficient number, since it is larger than the sum of its proper divisors (1494451967127).

2222002022121 is a wasteful number, since it uses less digits than its factorization.

2222002022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137902 (or 1137899 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2222002022121 its reverse (1212202002222), we get a palindrome (3434204024343).

The spelling of 2222002022121 in words is "two trillion, two hundred twenty-two billion, two million, twenty-two thousand, one hundred twenty-one".