1012221220112 has 20 divisors (see below), whose sum is σ = 1961272394640. Its totient is φ = 506086408608.

The previous prime is 1012221220097. The next prime is 1012221220151. The reversal of 1012221220112 is 2110221222101.

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, 1165118 + ... + 1839005.

It is an arithmetic number, because the mean of its divisors is an integer number (98063619732).

Almost surely, 2^{1012221220112} is an apocalyptic number.

It is an amenable number.

1012221220112 is a deficient number, since it is larger than the sum of its proper divisors (949051174528).

1012221220112 is a wasteful number, since it uses less digits than its factorization.

1012221220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025190 (or 3025184 counting only the distinct ones).

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

Adding to 1012221220112 its reverse (2110221222101), we get a palindrome (3122442442213).

The spelling of 1012221220112 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twelve".