20200121200202 has 32 divisors (see below), whose sum is σ = 30722394724560. Its totient is φ = 9960129740800.

The previous prime is 20200121200183. The next prime is 20200121200219. The reversal of 20200121200202 is 20200212100202.

It can be written as a sum of positive squares in 8 ways, for example, as 20191281627841 + 8839572361 = 4493471^2 + 94019^2 .

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, 892338428 + ... + 892361064.

Almost surely, 2^{20200121200202} is an apocalyptic number.

20200121200202 is a deficient number, since it is larger than the sum of its proper divisors (10522273524358).

20200121200202 is a wasteful number, since it uses less digits than its factorization.

20200121200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40186.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20200121200202 its reverse (20200212100202), we get a palindrome (40400333300404).

The spelling of 20200121200202 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, two hundred two".