1212210022112 has 24 divisors (see below), whose sum is σ = 2397051880776. Its totient is φ = 603434941312.

The previous prime is 1212210022097. The next prime is 1212210022157. The reversal of 1212210022112 is 2112200122121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83432303 + ... + 83446830.

It is an arithmetic number, because the mean of its divisors is an integer number (99877161699).

Almost surely, 2^{1212210022112} is an apocalyptic number.

It is an amenable number.

1212210022112 is a deficient number, since it is larger than the sum of its proper divisors (1184841858664).

1212210022112 is a wasteful number, since it uses less digits than its factorization.

1212210022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166879370 (or 166879362 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212210022112 its reverse (2112200122121), we get a palindrome (3324410144233).

The spelling of 1212210022112 in words is "one trillion, two hundred twelve billion, two hundred ten million, twenty-two thousand, one hundred twelve".