20200121200210 has 128 divisors (see below), whose sum is σ = 43965960192000. Its totient is φ = 6535528796160.

The previous prime is 20200121200183. The next prime is 20200121200219. The reversal of 20200121200210 is 1200212100202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20200121200219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55711986 + ... + 56073394.

It is an arithmetic number, because the mean of its divisors is an integer number (343484064000).

Almost surely, 2^{20200121200210} is an apocalyptic number.

20200121200210 is an abundant number, since it is smaller than the sum of its proper divisors (23765838991790).

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

20200121200210 is a wasteful number, since it uses less digits than its factorization.

20200121200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362096.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20200121200210 its reverse (1200212100202), we get a palindrome (21400333300412).

The spelling of 20200121200210 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, two hundred ten".