210202002001220 has 24 divisors (see below), whose sum is σ = 442734068324184. Its totient is φ = 83831302872576.

The previous prime is 210202002001219. The next prime is 210202002001249. The reversal of 210202002001220 is 22100200202012.

It can be written as a sum of positive squares in 4 ways, for example, as 16074181784644 + 194127820216576 = 4009262^2 + 13932976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210202002001195 and 210202002001204.

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, 15593613587 + ... + 15593627066.

It is an arithmetic number, because the mean of its divisors is an integer number (18447252846841).

Almost surely, 2^{210202002001220} is an apocalyptic number.

210202002001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202002001220 is an abundant number, since it is smaller than the sum of its proper divisors (232532066322964).

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

210202002001220 is a wasteful number, since it uses less digits than its factorization.

210202002001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31187240999 (or 31187240997 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210202002001220 its reverse (22100200202012), we get a palindrome (232302202203232).

The spelling of 210202002001220 in words is "two hundred ten trillion, two hundred two billion, two million, one thousand, two hundred twenty".