1220422244 has 6 divisors (see below), whose sum is σ = 2135738934. Its totient is φ = 610211120.

The previous prime is 1220422243. The next prime is 1220422253. The reversal of 1220422244 is 4422240221.

It can be written as a sum of positive squares in only one way, i.e., 975812644 + 244609600 = 31238^2 + 15640^2 .

It is not an unprimeable number, because it can be changed into a prime (1220422243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152552777 + ... + 152552784.

It is an arithmetic number, because the mean of its divisors is an integer number (355956489).

Almost surely, 2^1220422244 is an apocalyptic number.

It is an amenable number.

1220422244 is a deficient number, since it is larger than the sum of its proper divisors (915316690).

1220422244 is a wasteful number, since it uses less digits than its factorization.

1220422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305105565 (or 305105563 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1220422244 is about 34934.5422755187. The cubic root of 1220422244 is about 1068.6529892270.

Adding to 1220422244 its reverse (4422240221), we get a palindrome (5642662465).

The spelling of 1220422244 in words is "one billion, two hundred twenty million, four hundred twenty-two thousand, two hundred forty-four".