1212885130 has 16 divisors (see below), whose sum is σ = 2185354080. Its totient is φ = 484673872.

The previous prime is 1212885127. The next prime is 1212885139. The reversal of 1212885130 is 315882121.

It is a junction number, because it is equal to n+sod(n) for n = 1212885092 and 1212885101.

It is not an unprimeable number, because it can be changed into a prime (1212885139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49324 + ... + 69703.

It is an arithmetic number, because the mean of its divisors is an integer number (136584630).

Almost surely, 2^1212885130 is an apocalyptic number.

1212885130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212885130 is a deficient number, since it is larger than the sum of its proper divisors (972468950).

1212885130 is a wasteful number, since it uses less digits than its factorization.

1212885130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120053.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1212885130 is about 34826.5003984035. The cubic root of 1212885130 is about 1066.4485069248.

The spelling of 1212885130 in words is "one billion, two hundred twelve million, eight hundred eighty-five thousand, one hundred thirty".