1012212112311 has 20 divisors (see below), whose sum is σ = 1512418954200. Its totient is φ = 674652319056.

The previous prime is 1012212112277. The next prime is 1012212112321. The reversal of 1012212112311 is 1132112122101.

It is a happy number.

1012212112311 is a `hidden beast` number, since 1 + 0 + 1 + 221 + 211 + 231 + 1 = 666.

It is not a de Polignac number, because 1012212112311 - 2⁷ = 1012212112183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012212112321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1088556 + ... + 1791473.

It is an arithmetic number, because the mean of its divisors is an integer number (75620947710).

Almost surely, 2^{1012212112311} is an apocalyptic number.

1012212112311 is a deficient number, since it is larger than the sum of its proper divisors (500206841889).

1012212112311 is an equidigital number, since it uses as much as digits as its factorization.

1012212112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884380 (or 2884371 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1012212112311 its reverse (1132112122101), we get a palindrome (2144324234412).

The spelling of 1012212112311 in words is "one trillion, twelve billion, two hundred twelve million, one hundred twelve thousand, three hundred eleven".