1005115442212 has 48 divisors (see below), whose sum is σ = 2116172298240. Its totient is φ = 408065025312.

The previous prime is 1005115442189. The next prime is 1005115442213. The reversal of 1005115442212 is 2122445115001.

It is a super-2 number, since 2×1005115442212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1005115442213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9323973 + ... + 9431155.

It is an arithmetic number, because the mean of its divisors is an integer number (44086922880).

Almost surely, 2^{1005115442212} is an apocalyptic number.

It is an amenable number.

1005115442212 is an abundant number, since it is smaller than the sum of its proper divisors (1111056856028).

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

1005115442212 is a wasteful number, since it uses less digits than its factorization.

1005115442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124840 (or 124838 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 1005115442212 in words is "one trillion, five billion, one hundred fifteen million, four hundred forty-two thousand, two hundred twelve".