1021155042152 has 32 divisors (see below), whose sum is σ = 2316906400320. Its totient is φ = 411894470400.

The previous prime is 1021155042133. The next prime is 1021155042191. The reversal of 1021155042152 is 2512405511201.

1021155042152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1021155042152² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536319974 + ... + 536321877.

It is an arithmetic number, because the mean of its divisors is an integer number (72403325010).

Almost surely, 2^{1021155042152} is an apocalyptic number.

It is an amenable number.

1021155042152 is an abundant number, since it is smaller than the sum of its proper divisors (1295751358168).

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

1021155042152 is a wasteful number, since it uses less digits than its factorization.

1021155042152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072641881 (or 1072641877 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 1021155042152 in words is "one trillion, twenty-one billion, one hundred fifty-five million, forty-two thousand, one hundred fifty-two".