1022155521152 has 64 divisors (see below), whose sum is σ = 2201433115200. Its totient is φ = 471092972544.

The previous prime is 1022155521089. The next prime is 1022155521173. The reversal of 1022155521152 is 2511255512201.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 5589668 + ... + 5769635.

It is an arithmetic number, because the mean of its divisors is an integer number (34397392425).

Almost surely, 2^{1022155521152} is an apocalyptic number.

It is an amenable number.

1022155521152 is an abundant number, since it is smaller than the sum of its proper divisors (1179277594048).

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

1022155521152 is a wasteful number, since it uses less digits than its factorization.

1022155521152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11359373 (or 11359361 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 1022155521152 in words is "one trillion, twenty-two billion, one hundred fifty-five million, five hundred twenty-one thousand, one hundred fifty-two".