1222015115200 has 168 divisors, whose sum is σ = 3350072795904. Its totient is φ = 434914176000.

The previous prime is 1222015115143. The next prime is 1222015115213. The reversal of 1222015115200 is 25115102221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88555 + ... + 1565845.

Almost surely, 2^{1222015115200} is an apocalyptic number.

1222015115200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222015115200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675036397952).

1222015115200 is an abundant number, since it is smaller than the sum of its proper divisors (2128057680704).

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

1222015115200 is a wasteful number, since it uses less digits than its factorization.

1222015115200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477371 (or 1477356 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 1222015115200 in words is "one trillion, two hundred twenty-two billion, fifteen million, one hundred fifteen thousand, two hundred".