2111202221000 has 32 divisors (see below), whose sum is σ = 4940213199480. Its totient is φ = 844480888000.

The previous prime is 2111202220991. The next prime is 2111202221021. The reversal of 2111202221000 is 1222021112.

It can be written as a sum of positive squares in 4 ways, for example, as 284103924196 + 1827098296804 = 533014^2 + 1351702^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055600111 + ... + 1055602110.

Almost surely, 2^{2111202221000} is an apocalyptic number.

2111202221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111202221000 is an abundant number, since it is smaller than the sum of its proper divisors (2829010978480).

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

2111202221000 is a wasteful number, since it uses less digits than its factorization.

2111202221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111202242 (or 2111202228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111202221000 its reverse (1222021112), we get a palindrome (2112424242112).

The spelling of 2111202221000 in words is "two trillion, one hundred eleven billion, two hundred two million, two hundred twenty-one thousand".