1012121080 has 32 divisors (see below), whose sum is σ = 2332819440. Its totient is φ = 394973440.

The previous prime is 1012121069. The next prime is 1012121081. The reversal of 1012121080 is 801212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012121081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306934 + ... + 310213.

Almost surely, 2^1012121080 is an apocalyptic number.

1012121080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012121080 is an abundant number, since it is smaller than the sum of its proper divisors (1320698360).

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

1012121080 is a wasteful number, since it uses less digits than its factorization.

1012121080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617199 (or 617195 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1012121080 is about 31813.8504428496. The cubic root of 1012121080 is about 1004.0241445387.

Adding to 1012121080 its reverse (801212101), we get a palindrome (1813333181).

The spelling of 1012121080 in words is "one billion, twelve million, one hundred twenty-one thousand, eighty".