11220992 has 24 divisors (see below), whose sum is σ = 22440600. Its totient is φ = 5609472.

The previous prime is 11220991. The next prime is 11220997. The reversal of 11220992 is 29902211.

It is a happy number.

It is a super-2 number, since 2×11220992² = 251821322928128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692 + ... + 4787.

It is an arithmetic number, because the mean of its divisors is an integer number (935025).

Almost surely, 2^11220992 is an apocalyptic number.

It is an amenable number.

11220992 is a deficient number, since it is larger than the sum of its proper divisors (11219608).

11220992 is an frugal number, since it uses more digits than its factorization.

11220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501 (or 5481 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11220992 is about 3349.7749178116. The cubic root of 11220992 is about 223.8774840230.

The spelling of 11220992 in words is "eleven million, two hundred twenty thousand, nine hundred ninety-two".