210220120121202 has 12 divisors (see below), whose sum is σ = 455476926929310. Its totient is φ = 70073373373728.

The previous prime is 210220120121107. The next prime is 210220120121227. The reversal of 210220120121202 is 202121021022012.

It is a happy number.

210220120121202 is a `hidden beast` number, since 2 + 1 + 0 + 220 + 120 + 121 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 181464904333881 + 28755215787321 = 13470891^2 + 5362389^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11678895562289 = 210220120121202 / (2 + 1 + 0 + 2 + 2 + 0 + 1 + 2 + 0 + 1 + 2 + 1 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5839447781127 + ... + 5839447781162.

Almost surely, 2^{210220120121202} is an apocalyptic number.

210220120121202 is an abundant number, since it is smaller than the sum of its proper divisors (245256806808108).

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

210220120121202 is a wasteful number, since it uses less digits than its factorization.

210220120121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11678895562297 (or 11678895562294 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210220120121202 its reverse (202121021022012), we get a palindrome (412341141143214).

The spelling of 210220120121202 in words is "two hundred ten trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-one thousand, two hundred two".