1012210031997 has 12 divisors (see below), whose sum is σ = 1463615357724. Its totient is φ = 674098595520.

The previous prime is 1012210031981. The next prime is 1012210032179. The reversal of 1012210031997 is 7991300122101.

It can be written as a sum of positive squares in 2 ways, for example, as 324547835481 + 687662196516 = 569691^2 + 829254^2 .

It is not a de Polignac number, because 1012210031997 - 2⁴ = 1012210031981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012210031927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58998654 + ... + 59015807.

It is an arithmetic number, because the mean of its divisors is an integer number (121967946477).

Almost surely, 2^{1012210031997} is an apocalyptic number.

It is an amenable number.

1012210031997 is a deficient number, since it is larger than the sum of its proper divisors (451405325727).

1012210031997 is a wasteful number, since it uses less digits than its factorization.

1012210031997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118015420 (or 118015417 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The spelling of 1012210031997 in words is "one trillion, twelve billion, two hundred ten million, thirty-one thousand, nine hundred ninety-seven".