1211012022200 has 48 divisors (see below), whose sum is σ = 2821245675000. Its totient is φ = 483434017920.

The previous prime is 1211012022173. The next prime is 1211012022223. The reversal of 1211012022200 is 22202101121.

It is a congruent number.

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, 5967395 + ... + 6166994.

Almost surely, 2^{1211012022200} is an apocalyptic number.

1211012022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211012022200 is an abundant number, since it is smaller than the sum of its proper divisors (1610233652800).

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

1211012022200 is a wasteful number, since it uses less digits than its factorization.

1211012022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12134904 (or 12134895 counting only the distinct ones).

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

Adding to 1211012022200 its reverse (22202101121), we get a palindrome (1233214123321).

The spelling of 1211012022200 in words is "one trillion, two hundred eleven billion, twelve million, twenty-two thousand, two hundred".