22200002220021 has 32 divisors (see below), whose sum is σ = 31712375439360. Its totient is φ = 13779780643200.

The previous prime is 22200002219957. The next prime is 22200002220043. The reversal of 22200002220021 is 12002220000222.

It is not a de Polignac number, because 22200002220021 - 2⁶ = 22200002219957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200002220091) 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, 7695765 + ... + 10179626.

It is an arithmetic number, because the mean of its divisors is an integer number (991011732480).

Almost surely, 2^{22200002220021} is an apocalyptic number.

It is an amenable number.

22200002220021 is a deficient number, since it is larger than the sum of its proper divisors (9512373219339).

22200002220021 is a wasteful number, since it uses less digits than its factorization.

22200002220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17875897.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22200002220021 its reverse (12002220000222), we get a palindrome (34202222220243).

The spelling of 22200002220021 in words is "twenty-two trillion, two hundred billion, two million, two hundred twenty thousand, twenty-one".