20202120010 has 32 divisors (see below), whose sum is σ = 37131199632. Its totient is φ = 7911936000.

The previous prime is 20202119981. The next prime is 20202120019. The reversal of 20202120010 is 1002120202.

It can be written as a sum of positive squares in 8 ways, for example, as 16686697329 + 3515422681 = 129177^2 + 59291^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20202120019) 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, 991 + ... + 201010.

Almost surely, 2^20202120010 is an apocalyptic number.

20202120010 is a deficient number, since it is larger than the sum of its proper divisors (16929079622).

20202120010 is a wasteful number, since it uses less digits than its factorization.

20202120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202218.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20202120010 its reverse (1002120202), we get a palindrome (21204240212).

The spelling of 20202120010 in words is "twenty billion, two hundred two million, one hundred twenty thousand, ten".