1011212110120 has 32 divisors (see below), whose sum is σ = 2276073613800. Its totient is φ = 404334379008.

The previous prime is 1011212110109. The next prime is 1011212110157. The reversal of 1011212110120 is 210112121101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 800599036644 + 210613073476 = 894762^2 + 458926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1011212110120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4593129 + ... + 4808248.

Almost surely, 2^{1011212110120} is an apocalyptic number.

1011212110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011212110120 is an abundant number, since it is smaller than the sum of its proper divisors (1264861503680).

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

1011212110120 is a wasteful number, since it uses less digits than its factorization.

1011212110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9404077 (or 9404073 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011212110120 its reverse (210112121101), we get a palindrome (1221324231221).

The spelling of 1011212110120 in words is "one trillion, eleven billion, two hundred twelve million, one hundred ten thousand, one hundred twenty".