1122121254320 has 40 divisors (see below), whose sum is σ = 2846107547280. Its totient is φ = 408044092160.

The previous prime is 1122121254301. The next prime is 1122121254323. The reversal of 1122121254320 is 234521212211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1122121254320² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122121254320.

It is not an unprimeable number, because it can be changed into a prime (1122121254323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637568015 + ... + 637569774.

It is an arithmetic number, because the mean of its divisors is an integer number (71152688682).

Almost surely, 2^{1122121254320} is an apocalyptic number.

1122121254320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122121254320 is an abundant number, since it is smaller than the sum of its proper divisors (1723986292960).

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

1122121254320 is a wasteful number, since it uses less digits than its factorization.

1122121254320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275137813 (or 1275137807 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1122121254320 its reverse (234521212211), we get a palindrome (1356642466531).

The spelling of 1122121254320 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred fifty-four thousand, three hundred twenty".