1102220440 has 16 divisors (see below), whose sum is σ = 2479996080. Its totient is φ = 440888160.

The previous prime is 1102220393. The next prime is 1102220443. The reversal of 1102220440 is 440222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102220443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13777716 + ... + 13777795.

It is an arithmetic number, because the mean of its divisors is an integer number (154999755).

Almost surely, 2^1102220440 is an apocalyptic number.

1102220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102220440 is an abundant number, since it is smaller than the sum of its proper divisors (1377775640).

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

1102220440 is a wasteful number, since it uses less digits than its factorization.

1102220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27555522 (or 27555518 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1102220440 is about 33199.7054203799. The cubic root of 1102220440 is about 1032.9742292479.

Adding to 1102220440 its reverse (440222011), we get a palindrome (1542442451).

The spelling of 1102220440 in words is "one billion, one hundred two million, two hundred twenty thousand, four hundred forty".