20012210122 has 16 divisors (see below), whose sum is σ = 30366151200. Its totient is φ = 9890598960.

The previous prime is 20012210117. The next prime is 20012210129. The reversal of 20012210122 is 22101221002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20012210129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18204 + ... + 200887.

It is an arithmetic number, because the mean of its divisors is an integer number (1897884450).

Almost surely, 2^20012210122 is an apocalyptic number.

20012210122 is a deficient number, since it is larger than the sum of its proper divisors (10353941078).

20012210122 is a wasteful number, since it uses less digits than its factorization.

20012210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219621.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012210122 its reverse (22101221002), we get a palindrome (42113431124).

The spelling of 20012210122 in words is "twenty billion, twelve million, two hundred ten thousand, one hundred twenty-two".