210202101111220 has 48 divisors (see below), whose sum is σ = 462901367774160. Its totient is φ = 80069425744896.

The previous prime is 210202101111161. The next prime is 210202101111257. The reversal of 210202101111220 is 22111101202012.

It can be written as a sum of positive squares in 8 ways, for example, as 17986114928016 + 192215986183204 = 4241004^2 + 13864198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210202101111194 and 210202101111203.

It is a congruent number.

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, 2482268727 + ... + 2482353406.

It is an arithmetic number, because the mean of its divisors is an integer number (9643778495295).

Almost surely, 2^{210202101111220} is an apocalyptic number.

210202101111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202101111220 is an abundant number, since it is smaller than the sum of its proper divisors (252699266662940).

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

210202101111220 is a wasteful number, since it uses less digits than its factorization.

210202101111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964622244 (or 4964622242 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210202101111220 its reverse (22111101202012), we get a palindrome (232313202313232).

The spelling of 210202101111220 in words is "two hundred ten trillion, two hundred two billion, one hundred one million, one hundred eleven thousand, two hundred twenty".