1012212112312 has 16 divisors (see below), whose sum is σ = 1897921005840. Its totient is φ = 506099844096.

The previous prime is 1012212112277. The next prime is 1012212112321. The reversal of 1012212112312 is 2132112122101.

It is a super-2 number, since 2×1012212112312² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012212112312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43273 + ... + 1423480.

It is an arithmetic number, because the mean of its divisors is an integer number (118620062865).

Almost surely, 2^{1012212112312} is an apocalyptic number.

It is an amenable number.

1012212112312 is a deficient number, since it is larger than the sum of its proper divisors (885708893528).

1012212112312 is a wasteful number, since it uses less digits than its factorization.

1012212112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553022 (or 1553018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1012212112312 its reverse (2132112122101), we get a palindrome (3144324234413).

The spelling of 1012212112312 in words is "one trillion, twelve billion, two hundred twelve million, one hundred twelve thousand, three hundred twelve".