11219900 has 18 divisors (see below), whose sum is σ = 24347400. Its totient is φ = 4487920.

The previous prime is 11219891. The next prime is 11219903. The reversal of 11219900 is 991211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11219903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56000 + ... + 56199.

Almost surely, 2^11219900 is an apocalyptic number.

11219900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11219900 is an abundant number, since it is smaller than the sum of its proper divisors (13127500).

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

11219900 is a wasteful number, since it uses less digits than its factorization.

11219900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112213 (or 112206 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 11219900 is about 3349.6119178197. The cubic root of 11219900 is about 223.8702213810.

It can be divided in two parts, 11 and 219900, that multiplied together give a triangular number (2418900 = T₂₁₉₉).

The spelling of 11219900 in words is "eleven million, two hundred nineteen thousand, nine hundred".