301311130220212 has 72 divisors (see below), whose sum is σ = 626324471353224. Its totient is φ = 126434723724288.

The previous prime is 301311130220147. The next prime is 301311130220213. The reversal of 301311130220212 is 212022031113103.

It can be written as a sum of positive squares in 4 ways, for example, as 92261288615076 + 209049841605136 = 9605274^2 + 14458556^2 .

It is a super-2 number, since 2×301311130220212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301311130220213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74897203 + ... + 78817594.

It is an arithmetic number, because the mean of its divisors is an integer number (8698950991017).

Almost surely, 2^{301311130220212} is an apocalyptic number.

It is an amenable number.

301311130220212 is an abundant number, since it is smaller than the sum of its proper divisors (325013341133012).

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

301311130220212 is a wasteful number, since it uses less digits than its factorization.

301311130220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153715025 (or 153715016 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 301311130220212 its reverse (212022031113103), we get a palindrome (513333161333315).

The spelling of 301311130220212 in words is "three hundred one trillion, three hundred eleven billion, one hundred thirty million, two hundred twenty thousand, two hundred twelve".