1201553022 has 32 divisors (see below), whose sum is σ = 2502849024. Its totient is φ = 384199200.

The previous prime is 1201552993. The next prime is 1201553029. The reversal of 1201553022 is 2203551021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201553022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201553029) 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, 22354 + ... + 53877.

It is an arithmetic number, because the mean of its divisors is an integer number (78214032).

Almost surely, 2^1201553022 is an apocalyptic number.

1201553022 is an abundant number, since it is smaller than the sum of its proper divisors (1301296002).

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

1201553022 is a wasteful number, since it uses less digits than its factorization.

1201553022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76344.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1201553022 is about 34663.4248452169. The cubic root of 1201553022 is about 1063.1167971556.

The spelling of 1201553022 in words is "one billion, two hundred one million, five hundred fifty-three thousand, twenty-two".