1012253234220 has 72 divisors (see below), whose sum is σ = 3070778133696. Its totient is φ = 269909874432.

The previous prime is 1012253234197. The next prime is 1012253234281. The reversal of 1012253234220 is 224323522101.

1012253234220 is a `hidden beast` number, since 1 + 0 + 122 + 532 + 3 + 4 + 2 + 2 + 0 = 666.

It is a super-2 number, since 2×1012253234220² (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 23 ways as a sum of consecutive naturals, for example, 1795869 + ... + 2291211.

Almost surely, 2^{1012253234220} is an apocalyptic number.

1012253234220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012253234220 is an abundant number, since it is smaller than the sum of its proper divisors (2058524899476).

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

1012253234220 is a wasteful number, since it uses less digits than its factorization.

1012253234220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506711 (or 506706 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1012253234220 its reverse (224323522101), we get a palindrome (1236576756321).

The spelling of 1012253234220 in words is "one trillion, twelve billion, two hundred fifty-three million, two hundred thirty-four thousand, two hundred twenty".