1220950152 has 64 divisors (see below), whose sum is σ = 3474273600. Its totient is φ = 397054080.

The previous prime is 1220950139. The next prime is 1220950153. The reversal of 1220950152 is 2510590221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1220950153) 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 15 ways as a sum of consecutive naturals, for example, 60078 + ... + 77789.

It is an arithmetic number, because the mean of its divisors is an integer number (54285525).

Almost surely, 2^1220950152 is an apocalyptic number.

1220950152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220950152 is an abundant number, since it is smaller than the sum of its proper divisors (2253323448).

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

1220950152 is a wasteful number, since it uses less digits than its factorization.

1220950152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137923 (or 137913 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1220950152 is about 34942.0971322558. The cubic root of 1220950152 is about 1068.8070531562.

The spelling of 1220950152 in words is "one billion, two hundred twenty million, nine hundred fifty thousand, one hundred fifty-two".