20102121120010 has 16 divisors (see below), whose sum is σ = 36262994868936. Its totient is φ = 8023253591808.

The previous prime is 20102121119989. The next prime is 20102121120023. The reversal of 20102121120010 is 1002112120102.

It can be written as a sum of positive squares in 4 ways, for example, as 16464758867041 + 3637362252969 = 4057679^2 + 1907187^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199352227 + ... + 2199361366.

Almost surely, 2^{20102121120010} is an apocalyptic number.

20102121120010 is a deficient number, since it is larger than the sum of its proper divisors (16160873748926).

20102121120010 is a wasteful number, since it uses less digits than its factorization.

20102121120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398714057.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102121120010 its reverse (1002112120102), we get a palindrome (21104233240112).

The spelling of 20102121120010 in words is "twenty trillion, one hundred two billion, one hundred twenty-one million, one hundred twenty thousand, ten".