122313215251220 has 48 divisors (see below), whose sum is σ = 293651599086720. Its totient is φ = 41921690588544.

The previous prime is 122313215251111. The next prime is 122313215251223. The reversal of 122313215251220 is 22152512313221.

It is a super-2 number, since 2×122313215251220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122313215251223) 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, 148221719 + ... + 149044638.

It is an arithmetic number, because the mean of its divisors is an integer number (6117741647640).

Almost surely, 2^{122313215251220} is an apocalyptic number.

122313215251220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122313215251220 is an abundant number, since it is smaller than the sum of its proper divisors (171338383835500).

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

122313215251220 is a wasteful number, since it uses less digits than its factorization.

122313215251220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297269312 (or 297269310 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 122313215251220 its reverse (22152512313221), we get a palindrome (144465727564441).

The spelling of 122313215251220 in words is "one hundred twenty-two trillion, three hundred thirteen billion, two hundred fifteen million, two hundred fifty-one thousand, two hundred twenty".