20202102221210 has 64 divisors (see below), whose sum is σ = 44756121715200. Its totient is φ = 6393533029632.

The previous prime is 20202102221209. The next prime is 20202102221227. The reversal of 20202102221210 is 1212220120202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77801876 + ... + 78061104.

It is an arithmetic number, because the mean of its divisors is an integer number (699314401800).

Almost surely, 2^{20202102221210} is an apocalyptic number.

20202102221210 is an abundant number, since it is smaller than the sum of its proper divisors (24554019493990).

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

20202102221210 is a wasteful number, since it uses less digits than its factorization.

20202102221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344895.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20202102221210 its reverse (1212220120202), we get a palindrome (21414322341412).

The spelling of 20202102221210 in words is "twenty trillion, two hundred two billion, one hundred two million, two hundred twenty-one thousand, two hundred ten".