202102100120210 has 16 divisors (see below), whose sum is σ = 365293256487192. Its totient is φ = 80505400876800.

The previous prime is 202102100120159. The next prime is 202102100120287. The reversal of 202102100120210 is 12021001201202.

It can be written as a sum of positive squares in 4 ways, for example, as 201394783797769 + 707316322441 = 14191363^2 + 841021^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41929893881 + ... + 41929898700.

Almost surely, 2^{202102100120210} is an apocalyptic number.

202102100120210 is a deficient number, since it is larger than the sum of its proper divisors (163191156366982).

202102100120210 is a wasteful number, since it uses less digits than its factorization.

202102100120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83859792829.

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

Adding to 202102100120210 its reverse (12021001201202), we get a palindrome (214123101321412).

The spelling of 202102100120210 in words is "two hundred two trillion, one hundred two billion, one hundred million, one hundred twenty thousand, two hundred ten".