20212012121010 has 64 divisors (see below), whose sum is σ = 49174392384000. Its totient is φ = 5315921602560.

The previous prime is 20212012120997. The next prime is 20212012121017. The reversal of 20212012121010 is 1012121021202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20212012121017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161995450 + ... + 162120170.

It is an arithmetic number, because the mean of its divisors is an integer number (768349881000).

Almost surely, 2^{20212012121010} is an apocalyptic number.

20212012121010 is an abundant number, since it is smaller than the sum of its proper divisors (28962380262990).

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

20212012121010 is a wasteful number, since it uses less digits than its factorization.

20212012121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198803.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20212012121010 its reverse (1012121021202), we get a palindrome (21224133142212).

It can be divided in two parts, 202120 and 12121010, that added together give a triangular number (12323130 = T₄₉₆₄).

The spelling of 20212012121010 in words is "twenty trillion, two hundred twelve billion, twelve million, one hundred twenty-one thousand, ten".