20211112122 has 16 divisors (see below), whose sum is σ = 40435649760. Its totient is φ = 6734799792.

The previous prime is 20211112111. The next prime is 20211112147. The reversal of 20211112122 is 22121111202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539773 + ... + 576000.

It is an arithmetic number, because the mean of its divisors is an integer number (2527228110).

Almost surely, 2^20211112122 is an apocalyptic number.

20211112122 is an abundant number, since it is smaller than the sum of its proper divisors (20224537638).

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

20211112122 is a wasteful number, since it uses less digits than its factorization.

20211112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118797.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211112122 its reverse (22121111202), we get a palindrome (42332223324).

The spelling of 20211112122 in words is "twenty billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-two".