1220372226 has 48 divisors (see below), whose sum is σ = 2848135680. Its totient is φ = 376548480.

The previous prime is 1220372201. The next prime is 1220372233. The reversal of 1220372226 is 6222730221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220372226.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34711 + ... + 60378.

It is an arithmetic number, because the mean of its divisors is an integer number (59336160).

Almost surely, 2^1220372226 is an apocalyptic number.

1220372226 is an abundant number, since it is smaller than the sum of its proper divisors (1627763454).

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

1220372226 is a wasteful number, since it uses less digits than its factorization.

1220372226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95151 (or 95148 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1220372226 is about 34933.8263864696. The cubic root of 1220372226 is about 1068.6383897402.

The spelling of 1220372226 in words is "one billion, two hundred twenty million, three hundred seventy-two thousand, two hundred twenty-six".