1220151332 has 24 divisors (see below), whose sum is σ = 2150258880. Its totient is φ = 605806560.

The previous prime is 1220151301. The next prime is 1220151343. The reversal of 1220151332 is 2331510221.

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, 397082 + ... + 400142.

It is an arithmetic number, because the mean of its divisors is an integer number (89594120).

Almost surely, 2^1220151332 is an apocalyptic number.

It is an amenable number.

1220151332 is a deficient number, since it is larger than the sum of its proper divisors (930107548).

1220151332 is a wasteful number, since it uses less digits than its factorization.

1220151332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1220151332 is about 34930.6646372496. The cubic root of 1220151332 is about 1068.5739093990.

Adding to 1220151332 its reverse (2331510221), we get a palindrome (3551661553).

The spelling of 1220151332 in words is "one billion, two hundred twenty million, one hundred fifty-one thousand, three hundred thirty-two".