101031021221312 has 56 divisors (see below), whose sum is σ = 246748840304736. Its totient is φ = 39968316085248.

The previous prime is 101031021221311. The next prime is 101031021221323. The reversal of 101031021221312 is 213122120130101.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101031021221311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8673673883 + ... + 8673685530.

It is an arithmetic number, because the mean of its divisors is an integer number (4406229291156).

Almost surely, 2^{101031021221312} is an apocalyptic number.

It is an amenable number.

101031021221312 is an abundant number, since it is smaller than the sum of its proper divisors (145717819083424).

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

101031021221312 is a wasteful number, since it uses less digits than its factorization.

101031021221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17347359445 (or 17347359435 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 101031021221312 its reverse (213122120130101), we get a palindrome (314153141351413).

The spelling of 101031021221312 in words is "one hundred one trillion, thirty-one billion, twenty-one million, two hundred twenty-one thousand, three hundred twelve".