2200001000021 has 16 divisors (see below), whose sum is σ = 2483777736000. Its totient is φ = 1930243593600.

The previous prime is 2200000999997. The next prime is 2200001000053. The reversal of 2200001000021 is 1200001000022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2200001000021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200000999972 and 2200001000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200001000081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633971 + ... + 2191328.

It is an arithmetic number, because the mean of its divisors is an integer number (155236108500).

Almost surely, 2^{2200001000021} is an apocalyptic number.

It is an amenable number.

2200001000021 is a deficient number, since it is larger than the sum of its proper divisors (283776735979).

2200001000021 is a wasteful number, since it uses less digits than its factorization.

2200001000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827780.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 2200001000021 its reverse (1200001000022), we get a palindrome (3400002000043).

Subtracting from 2200001000021 its reverse (1200001000022), we obtain a palindrome (999999999999).

The spelling of 2200001000021 in words is "two trillion, two hundred billion, one million, twenty-one", and thus it is an aban number.