1220211344 has 40 divisors (see below), whose sum is σ = 2639078112. Its totient is φ = 541739520.

The previous prime is 1220211313. The next prime is 1220211353. The reversal of 1220211344 is 4431120221.

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, 73049 + ... + 88184.

Almost surely, 2^1220211344 is an apocalyptic number.

It is an amenable number.

1220211344 is an abundant number, since it is smaller than the sum of its proper divisors (1418866768).

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

1220211344 is a wasteful number, since it uses less digits than its factorization.

1220211344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161295 (or 161289 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1220211344 is about 34931.5236426927. The cubic root of 1220211344 is about 1068.5914280473.

Adding to 1220211344 its reverse (4431120221), we get a palindrome (5651331565).

The spelling of 1220211344 in words is "one billion, two hundred twenty million, two hundred eleven thousand, three hundred forty-four".