22021021000002 has 16 divisors (see below), whose sum is σ = 44060871460320. Its totient is φ = 7337202089952.

The previous prime is 22021021000001. The next prime is 22021021000003. The reversal of 22021021000002 is 20000012012022.

It is an interprime number because it is at equal distance from previous prime (22021021000001) and next prime (22021021000003).

It is a super-3 number, since 3×22021021000002³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22021021000001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784545643 + ... + 784573710.

It is an arithmetic number, because the mean of its divisors is an integer number (2753804466270).

Almost surely, 2^{22021021000002} is an apocalyptic number.

22021021000002 is an abundant number, since it is smaller than the sum of its proper divisors (22039850460318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021021000002 is a wasteful number, since it uses less digits than its factorization.

22021021000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569121697.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22021021000002 its reverse (20000012012022), we get a palindrome (42021033012024).

The spelling of 22021021000002 in words is "twenty-two trillion, twenty-one billion, twenty-one million, two", and thus it is an aban number and an uban number.