20211012122 has 48 divisors (see below), whose sum is σ = 36888334080. Its totient is φ = 8133979392.

The previous prime is 20211012119. The next prime is 20211012169. The reversal of 20211012122 is 22121011202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20211012097 and 20211012106.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1867904 + ... + 1878692.

It is an arithmetic number, because the mean of its divisors is an integer number (768506960).

Almost surely, 2^20211012122 is an apocalyptic number.

20211012122 is a deficient number, since it is larger than the sum of its proper divisors (16677321958).

20211012122 is a wasteful number, since it uses less digits than its factorization.

20211012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295 (or 11278 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211012122 its reverse (22121011202), we get a palindrome (42332023324).

The spelling of 20211012122 in words is "twenty billion, two hundred eleven million, twelve thousand, one hundred twenty-two".