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22191122 = 233312
BaseRepresentation
bin101010010100…
…1110000010010
31112202102111102
41110221300102
521140103442
62111344402
7356423102
oct124516022
945672442
1022191122
1111587578
127522102
13479c855
142d39202
151e35232
hex1529c12

22191122 has 6 divisors (see below), whose sum is σ = 33296679. Its totient is φ = 11092230.

The previous prime is 22191101. The next prime is 22191163. The reversal of 22191122 is 22119122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 11095561 = 3331^2 + 3331^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3331.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22191094 and 22191103.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4997 + ... + 8327.

Almost surely, 222191122 is an apocalyptic number.

22191122 is a deficient number, since it is larger than the sum of its proper divisors (11105557).

22191122 is an frugal number, since it uses more digits than its factorization.

22191122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664 (or 3333 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 22191122 is about 4710.7453762648. The cubic root of 22191122 is about 281.0130058189.

The spelling of 22191122 in words is "twenty-two million, one hundred ninety-one thousand, one hundred twenty-two".

Divisors: 1 2 3331 6662 11095561 22191122