1212102211112 has 32 divisors (see below), whose sum is σ = 2457037535400. Its totient is φ = 557255000064.

The previous prime is 1212102211087. The next prime is 1212102211127. The reversal of 1212102211112 is 2111122012121.

It can be written as a sum of positive squares in 4 ways, for example, as 1203834673636 + 8267537476 = 1097194^2 + 90926^2 .

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, 22648037 + ... + 22701492.

Almost surely, 2^{1212102211112} is an apocalyptic number.

It is an amenable number.

1212102211112 is an abundant number, since it is smaller than the sum of its proper divisors (1244935324288).

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

1212102211112 is a wasteful number, since it uses less digits than its factorization.

1212102211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45349805 (or 45349801 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1212102211112 its reverse (2111122012121), we get a palindrome (3323224223233).

The spelling of 1212102211112 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, one hundred twelve".