2021013221310 has 40 divisors (see below), whose sum is σ = 5434279997256. Its totient is φ = 538936858800.

The previous prime is 2021013221299. The next prime is 2021013221389. The reversal of 2021013221310 is 131223101202.

2021013221310 is a `hidden beast` number, since 2 + 0 + 210 + 1 + 322 + 131 + 0 = 666.

It is a super-2 number, since 2×2021013221310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1247538216 + ... + 1247539835.

Almost surely, 2^{2021013221310} is an apocalyptic number.

2021013221310 is an abundant number, since it is smaller than the sum of its proper divisors (3413266775946).

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

2021013221310 is a wasteful number, since it uses less digits than its factorization.

2021013221310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495078070 (or 2495078061 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2021013221310 its reverse (131223101202), we get a palindrome (2152236322512).

The spelling of 2021013221310 in words is "two trillion, twenty-one billion, thirteen million, two hundred twenty-one thousand, three hundred ten".