20211244112 has 40 divisors (see below), whose sum is σ = 41075942400. Its totient is φ = 9615605120.

The previous prime is 20211244103. The next prime is 20211244133. The reversal of 20211244112 is 21144211202.

It is a congruent number.

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, 73487 + ... + 214062.

It is an arithmetic number, because the mean of its divisors is an integer number (1026898560).

Almost surely, 2^20211244112 is an apocalyptic number.

It is an amenable number.

20211244112 is an abundant number, since it is smaller than the sum of its proper divisors (20864698288).

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

20211244112 is a wasteful number, since it uses less digits than its factorization.

20211244112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287771 (or 287765 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20211244112 its reverse (21144211202), we get a palindrome (41355455314).

The spelling of 20211244112 in words is "twenty billion, two hundred eleven million, two hundred forty-four thousand, one hundred twelve".