201212012121010 has 128 divisors (see below), whose sum is σ = 401353716234240. Its totient is φ = 72023179084800.

The previous prime is 201212012120981. The next prime is 201212012121049. The reversal of 201212012121010 is 10121210212102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 792336477 + ... + 792590383.

It is an arithmetic number, because the mean of its divisors is an integer number (3135575908080).

Almost surely, 2^{201212012121010} is an apocalyptic number.

201212012121010 is a deficient number, since it is larger than the sum of its proper divisors (200141704113230).

201212012121010 is a wasteful number, since it uses less digits than its factorization.

201212012121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254512.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201212012121010 its reverse (10121210212102), we get a palindrome (211333222333112).

The spelling of 201212012121010 in words is "two hundred one trillion, two hundred twelve billion, twelve million, one hundred twenty-one thousand, ten".