20202100121210 has 64 divisors (see below), whose sum is σ = 41948619552000. Its totient is φ = 6861437053440.

The previous prime is 20202100121197. The next prime is 20202100121213. The reversal of 20202100121210 is 1212100120202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (20202100121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387573950 + ... + 387626070.

It is an arithmetic number, because the mean of its divisors is an integer number (655447180500).

Almost surely, 2^{20202100121210} is an apocalyptic number.

20202100121210 is an abundant number, since it is smaller than the sum of its proper divisors (21746519430790).

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

20202100121210 is a wasteful number, since it uses less digits than its factorization.

20202100121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103991.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20202100121210 its reverse (1212100120202), we get a palindrome (21414200241412).

The spelling of 20202100121210 in words is "twenty trillion, two hundred two billion, one hundred million, one hundred twenty-one thousand, two hundred ten".