1121022023220 has 108 divisors (see below), whose sum is σ = 3737666614500. Its totient is φ = 271762909440.

The previous prime is 1121022023207. The next prime is 1121022023257. The reversal of 1121022023220 is 223202201211.

1121022023220 is a `hidden beast` number, since 1 + 1 + 210 + 220 + 232 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 614160611856 + 506861411364 = 783684^2 + 711942^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1121022023193 and 1121022023202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25713345 + ... + 25756904.

Almost surely, 2^{1121022023220} is an apocalyptic number.

1121022023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121022023220 is an abundant number, since it is smaller than the sum of its proper divisors (2616644591280).

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

1121022023220 is a wasteful number, since it uses less digits than its factorization.

1121022023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51470286 (or 51470270 counting only the distinct ones).

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

Adding to 1121022023220 its reverse (223202201211), we get a palindrome (1344224224431).

The spelling of 1121022023220 in words is "one trillion, one hundred twenty-one billion, twenty-two million, twenty-three thousand, two hundred twenty".