2021121313310 has 32 divisors (see below), whose sum is σ = 4105600668000. Its totient is φ = 709609989760.

The previous prime is 2021121313279. The next prime is 2021121313313. The reversal of 2021121313310 is 133131211202.

It is a happy number.

It is a super-2 number, since 2×2021121313310² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021121313313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316786985 + ... + 316793364.

It is an arithmetic number, because the mean of its divisors is an integer number (128300020875).

Almost surely, 2^{2021121313310} is an apocalyptic number.

2021121313310 is an abundant number, since it is smaller than the sum of its proper divisors (2084479354690).

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

2021121313310 is a wasteful number, since it uses less digits than its factorization.

2021121313310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633580396.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2021121313310 its reverse (133131211202), we get a palindrome (2154252524512).

The spelling of 2021121313310 in words is "two trillion, twenty-one billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred ten".