20102201022122 has 32 divisors (see below), whose sum is σ = 32607149674752. Its totient is φ = 9258351128064.

The previous prime is 20102201022091. The next prime is 20102201022133. The reversal of 20102201022122 is 22122010220102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20102201022122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73616213 + ... + 73888775.

It is an arithmetic number, because the mean of its divisors is an integer number (1018973427336).

Almost surely, 2^{20102201022122} is an apocalyptic number.

20102201022122 is a deficient number, since it is larger than the sum of its proper divisors (12504948652630).

20102201022122 is a wasteful number, since it uses less digits than its factorization.

20102201022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318782.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102201022122 its reverse (22122010220102), we get a palindrome (42224211242224).

The spelling of 20102201022122 in words is "twenty trillion, one hundred two billion, two hundred one million, twenty-two thousand, one hundred twenty-two".