20001102122202 has 32 divisors (see below), whose sum is σ = 40226232830784. Its totient is φ = 6629701478400.

The previous prime is 20001102122189. The next prime is 20001102122213. The reversal of 20001102122202 is 20222120110002.

It is a super-2 number, since 2×20001102122202² (a number of 27 digits) contains 22 as substring.

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, 13911813 + ... + 15282039.

It is an arithmetic number, because the mean of its divisors is an integer number (1257069775962).

Almost surely, 2^{20001102122202} is an apocalyptic number.

20001102122202 is an abundant number, since it is smaller than the sum of its proper divisors (20225130708582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001102122202 is a wasteful number, since it uses less digits than its factorization.

20001102122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383854.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20001102122202 its reverse (20222120110002), we get a palindrome (40223222232204).

The spelling of 20001102122202 in words is "twenty trillion, one billion, one hundred two million, one hundred twenty-two thousand, two hundred two".