1122021223200 has 144 divisors (see below), whose sum is σ = 4057976835360. Its totient is φ = 299205653760.

The previous prime is 1122021223199. The next prime is 1122021223249. The reversal of 1122021223200 is 23221202211.

1122021223200 is a `hidden beast` number, since 1 + 1 + 220 + 2 + 122 + 320 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1122021223200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 25951114 + ... + 25994313.

It is an arithmetic number, because the mean of its divisors is an integer number (28180394690).

Almost surely, 2^{1122021223200} is an apocalyptic number.

1122021223200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122021223200 is an abundant number, since it is smaller than the sum of its proper divisors (2935955612160).

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

1122021223200 is a wasteful number, since it uses less digits than its factorization.

1122021223200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51945456 (or 51945437 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1122021223200 its reverse (23221202211), we get a palindrome (1145242425411).

The spelling of 1122021223200 in words is "one trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-three thousand, two hundred".