1222135151200 has 36 divisors (see below), whose sum is σ = 2983537439820. Its totient is φ = 488854060160.

The previous prime is 1222135151191. The next prime is 1222135151239. The reversal of 1222135151200 is 21515312221.

It is a happy number.

It is a super-2 number, since 2×1222135151200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 763833670 + ... + 763835269.

It is an arithmetic number, because the mean of its divisors is an integer number (82876039995).

Almost surely, 2^{1222135151200} is an apocalyptic number.

1222135151200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222135151200 is an abundant number, since it is smaller than the sum of its proper divisors (1761402288620).

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

1222135151200 is a wasteful number, since it uses less digits than its factorization.

1222135151200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527668959 (or 1527668946 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 1222135151200 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-five million, one hundred fifty-one thousand, two hundred".