20121322112310 has 64 divisors (see below), whose sum is σ = 48471516856512. Its totient is φ = 5345652504576.

The previous prime is 20121322112303. The next prime is 20121322112317. The reversal of 20121322112310 is 1321122312102.

It is an interprime number because it is at equal distance from previous prime (20121322112303) and next prime (20121322112317).

It is a super-2 number, since 2×20121322112310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121322112317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68802154 + ... + 69093986.

It is an arithmetic number, because the mean of its divisors is an integer number (757367450883).

Almost surely, 2^{20121322112310} is an apocalyptic number.

20121322112310 is an abundant number, since it is smaller than the sum of its proper divisors (28350194744202).

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

20121322112310 is a wasteful number, since it uses less digits than its factorization.

20121322112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300417.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20121322112310 its reverse (1321122312102), we get a palindrome (21442444424412).

The spelling of 20121322112310 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-two million, one hundred twelve thousand, three hundred ten".