21120214124310 has 128 divisors (see below), whose sum is σ = 58531283887104. Its totient is φ = 4777355427840.

The previous prime is 21120214124279. The next prime is 21120214124323. The reversal of 21120214124310 is 1342141202112.

It is a super-2 number, since 2×21120214124310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 355284190 + ... + 355343630.

It is an arithmetic number, because the mean of its divisors is an integer number (457275655368).

Almost surely, 2^{21120214124310} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21120214124310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29265641943552).

21120214124310 is an abundant number, since it is smaller than the sum of its proper divisors (37411069762794).

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

21120214124310 is a wasteful number, since it uses less digits than its factorization.

21120214124310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76998.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 21120214124310 its reverse (1342141202112), we get a palindrome (22462355326422).

The spelling of 21120214124310 in words is "twenty-one trillion, one hundred twenty billion, two hundred fourteen million, one hundred twenty-four thousand, three hundred ten".