20212121112010 has 32 divisors (see below), whose sum is σ = 37184709284352. Its totient is φ = 7908357028800.

The previous prime is 20212121111989. The next prime is 20212121112017. The reversal of 20212121112010 is 1021112121202.

It is not an unprimeable number, because it can be changed into a prime (20212121112017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120470394 + ... + 120638053.

It is an arithmetic number, because the mean of its divisors is an integer number (1162022165136).

Almost surely, 2^{20212121112010} is an apocalyptic number.

20212121112010 is a deficient number, since it is larger than the sum of its proper divisors (16972588172342).

20212121112010 is a wasteful number, since it uses less digits than its factorization.

20212121112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241108638.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20212121112010 its reverse (1021112121202), we get a palindrome (21233233233212).

The spelling of 20212121112010 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, ten".