221002202001012 has 48 divisors (see below), whose sum is σ = 521778997888512. Its totient is φ = 72798813480960.

The previous prime is 221002202000963. The next prime is 221002202001013. The reversal of 221002202001012 is 210100202200122.

It is a super-2 number, since 2×221002202001012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221002202000982 and 221002202001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002202001013) 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, 241354564 + ... + 242268507.

It is an arithmetic number, because the mean of its divisors is an integer number (10870395789344).

Almost surely, 2^{221002202001012} is an apocalyptic number.

It is an amenable number.

221002202001012 is an abundant number, since it is smaller than the sum of its proper divisors (300776795887500).

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

221002202001012 is a wasteful number, since it uses less digits than its factorization.

221002202001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483623528 (or 483623526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221002202001012 its reverse (210100202200122), we get a palindrome (431102404201134).

The spelling of 221002202001012 in words is "two hundred twenty-one trillion, two billion, two hundred two million, one thousand, twelve".