12210090 has 32 divisors (see below), whose sum is σ = 29410560. Its totient is φ = 3244224.

The previous prime is 12210067. The next prime is 12210101. The reversal of 12210090 is 9001221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10456 + ... + 11564.

It is an arithmetic number, because the mean of its divisors is an integer number (919080).

Almost surely, 2^12210090 is an apocalyptic number.

12210090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210090 is an abundant number, since it is smaller than the sum of its proper divisors (17200470).

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

12210090 is a wasteful number, since it uses less digits than its factorization.

12210090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12210090 is about 3494.2939200932. The cubic root of 12210090 is about 230.2711986858.

The spelling of 12210090 in words is "twelve million, two hundred ten thousand, ninety".