1021120223310 has 120 divisors (see below), whose sum is σ = 3017977838568. Its totient is φ = 247544272800.

The previous prime is 1021120223309. The next prime is 1021120223317. The reversal of 1021120223310 is 133220211201.

1021120223310 is a `hidden beast` number, since 10 + 2 + 1 + 120 + 223 + 310 = 666.

It is a super-2 number, since 2×1021120223310² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021120223317) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5111256 + ... + 5307275.

Almost surely, 2^{1021120223310} is an apocalyptic number.

1021120223310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021120223310 is an abundant number, since it is smaller than the sum of its proper divisors (1996857615258).

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

1021120223310 is a wasteful number, since it uses less digits than its factorization.

1021120223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10418572 (or 10418552 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021120223310 its reverse (133220211201), we get a palindrome (1154340434511).

The spelling of 1021120223310 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred twenty-three thousand, three hundred ten".