1121621421088 has 24 divisors (see below), whose sum is σ = 2523648197952. Its totient is φ = 480694894656.

The previous prime is 1121621421031. The next prime is 1121621421103. The reversal of 1121621421088 is 8801241261211.

It is a super-2 number, since 2×1121621421088² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503619020 + ... + 2503619467.

It is an arithmetic number, because the mean of its divisors is an integer number (105152008248).

Almost surely, 2^{1121621421088} is an apocalyptic number.

It is an amenable number.

1121621421088 is an abundant number, since it is smaller than the sum of its proper divisors (1402026776864).

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

1121621421088 is an equidigital number, since it uses as much as digits as its factorization.

1121621421088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007238504 (or 5007238496 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 37.

Adding to 1121621421088 its reverse (8801241261211), we get a palindrome (9922862682299).

The spelling of 1121621421088 in words is "one trillion, one hundred twenty-one billion, six hundred twenty-one million, four hundred twenty-one thousand, eighty-eight".