10122221212112 has 40 divisors (see below), whose sum is σ = 20875958942400. Its totient is φ = 4740862908672.

The previous prime is 10122221212067. The next prime is 10122221212123. The reversal of 10122221212112 is 21121212222101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187033508 + ... + 187087619.

It is an arithmetic number, because the mean of its divisors is an integer number (521898973560).

Almost surely, 2^{10122221212112} is an apocalyptic number.

It is an amenable number.

10122221212112 is an abundant number, since it is smaller than the sum of its proper divisors (10753737730288).

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

10122221212112 is a wasteful number, since it uses less digits than its factorization.

10122221212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374121243 (or 374121237 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10122221212112 its reverse (21121212222101), we get a palindrome (31243433434213).

The spelling of 10122221212112 in words is "ten trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twelve".