210112021001220 has 192 divisors, whose sum is σ = 651235283887104. Its totient is φ = 50294971883520.

The previous prime is 210112021001209. The next prime is 210112021001231. The reversal of 210112021001220 is 22100120211012.

It is an interprime number because it is at equal distance from previous prime (210112021001209) and next prime (210112021001231).

It is a super-2 number, since 2×210112021001220² (a number of 29 digits) contains 22 as substring.

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 210112021001220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17817676 + ... + 27160515.

It is an arithmetic number, because the mean of its divisors is an integer number (3391850436912).

Almost surely, 2^{210112021001220} is an apocalyptic number.

210112021001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112021001220 is an abundant number, since it is smaller than the sum of its proper divisors (441123262885884).

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

210112021001220 is a wasteful number, since it uses less digits than its factorization.

210112021001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44978382 (or 44978380 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210112021001220 its reverse (22100120211012), we get a palindrome (232212141212232).

The spelling of 210112021001220 in words is "two hundred ten trillion, one hundred twelve billion, twenty-one million, one thousand, two hundred twenty".