20122101212122 has 48 divisors (see below), whose sum is σ = 38043835516512. Its totient is φ = 7911554847840.

The previous prime is 20122101212033. The next prime is 20122101212183. The reversal of 20122101212122 is 22121210122102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122101212122.

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, 48241504 + ... + 48656827.

It is an arithmetic number, because the mean of its divisors is an integer number (792579906594).

Almost surely, 2^{20122101212122} is an apocalyptic number.

20122101212122 is a deficient number, since it is larger than the sum of its proper divisors (17921734304390).

20122101212122 is a wasteful number, since it uses less digits than its factorization.

20122101212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96898523 (or 96898516 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122101212122 its reverse (22121210122102), we get a palindrome (42243311334224).

The spelling of 20122101212122 in words is "twenty trillion, one hundred twenty-two billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".