202120201020210 has 32 divisors (see below), whose sum is σ = 529187435399232. Its totient is φ = 48998836610880.

The previous prime is 202120201020209. The next prime is 202120201020247. The reversal of 202120201020210 is 12020102021202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202120201020210.

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, 306242728489 + ... + 306242729148.

It is an arithmetic number, because the mean of its divisors is an integer number (16537107356226).

Almost surely, 2^{202120201020210} is an apocalyptic number.

202120201020210 is an abundant number, since it is smaller than the sum of its proper divisors (327067234379022).

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

202120201020210 is a wasteful number, since it uses less digits than its factorization.

202120201020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612485457658.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202120201020210 its reverse (12020102021202), we get a palindrome (214140303041412).

The spelling of 202120201020210 in words is "two hundred two trillion, one hundred twenty billion, two hundred one million, twenty thousand, two hundred ten".