2221000202212 has 36 divisors (see below), whose sum is σ = 4314512434428. Its totient is φ = 999550024000.

The previous prime is 2221000202173. The next prime is 2221000202221. The reversal of 2221000202212 is 2122020001222.

It can be written as a sum of positive squares in 2 ways, for example, as 1982959646976 + 238040555236 = 1408176^2 + 487894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22668163 + ... + 22765930.

It is an arithmetic number, because the mean of its divisors is an integer number (119847567623).

Almost surely, 2^{2221000202212} is an apocalyptic number.

2221000202212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221000202212 is a deficient number, since it is larger than the sum of its proper divisors (2093512232216).

2221000202212 is a wasteful number, since it uses less digits than its factorization.

2221000202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45434220 (or 45434207 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2221000202212 its reverse (2122020001222), we get a palindrome (4343020203434).

The spelling of 2221000202212 in words is "two trillion, two hundred twenty-one billion, two hundred two thousand, two hundred twelve".