20102100121222 has 32 divisors (see below), whose sum is σ = 36323552620800. Its totient is φ = 8150710533408.

The previous prime is 20102100121217. The next prime is 20102100121247. The reversal of 20102100121222 is 22212100120102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20102100121196 and 20102100121205.

It is a congruent number.

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, 50934553 + ... + 51327700.

It is an arithmetic number, because the mean of its divisors is an integer number (1135111019400).

Almost surely, 2^{20102100121222} is an apocalyptic number.

20102100121222 is a deficient number, since it is larger than the sum of its proper divisors (16221452499578).

20102100121222 is a wasteful number, since it uses less digits than its factorization.

20102100121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102263020.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102100121222 its reverse (22212100120102), we get a palindrome (42314200241324).

The spelling of 20102100121222 in words is "twenty trillion, one hundred two billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-two".