20211012210122 has 16 divisors (see below), whose sum is σ = 30438999372672. Its totient is φ = 10064733488160.

The previous prime is 20211012210089. The next prime is 20211012210197. The reversal of 20211012210122 is 22101221011202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211012210122.

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, 12856754 + ... + 14342877.

It is an arithmetic number, because the mean of its divisors is an integer number (1902437460792).

Almost surely, 2^{20211012210122} is an apocalyptic number.

20211012210122 is a deficient number, since it is larger than the sum of its proper divisors (10227987162550).

20211012210122 is a wasteful number, since it uses less digits than its factorization.

20211012210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27201133.

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

Adding to 20211012210122 its reverse (22101221011202), we get a palindrome (42312233221324).

The spelling of 20211012210122 in words is "twenty trillion, two hundred eleven billion, twelve million, two hundred ten thousand, one hundred twenty-two".