2222222001021 has 48 divisors (see below), whose sum is σ = 3507334871040. Its totient is φ = 1344628836000.

The previous prime is 2222222000993. The next prime is 2222222001031. The reversal of 2222222001021 is 1201002222222.

2222222001021 is a `hidden beast` number, since 222 + 222 + 200 + 1 + 0 + 21 = 666.

It is not a de Polignac number, because 2222222001021 - 2¹⁰ = 2222221999997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222222000985 and 2222222001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222222001031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406179316 + ... + 406184786.

It is an arithmetic number, because the mean of its divisors is an integer number (73069476480).

Almost surely, 2^{2222222001021} is an apocalyptic number.

It is an amenable number.

2222222001021 is a deficient number, since it is larger than the sum of its proper divisors (1285112870019).

2222222001021 is a wasteful number, since it uses less digits than its factorization.

2222222001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11358 (or 11355 counting only the distinct ones).

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

Adding to 2222222001021 its reverse (1201002222222), we get a palindrome (3423224223243).

The spelling of 2222222001021 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, one thousand, twenty-one".