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20220222 = 2311306367
BaseRepresentation
bin100110100100…
…0100100111110
31102001021221010
41031020210332
520134021342
62001220050
7333604041
oct115104476
942037833
1020220222
1110460830
126931626
13425c739
142984c58
151b9629c
hex134893e

20220222 has 16 divisors (see below), whose sum is σ = 44116992. Its totient is φ = 6127320.

The previous prime is 20220217. The next prime is 20220247. The reversal of 20220222 is 22202202.

It is a junction number, because it is equal to n+sod(n) for n = 20220198 and 20220207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153118 + ... + 153249.

It is an arithmetic number, because the mean of its divisors is an integer number (2757312).

Almost surely, 220220222 is an apocalyptic number.

20220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20220222 is an abundant number, since it is smaller than the sum of its proper divisors (23896770).

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

20220222 is a wasteful number, since it uses less digits than its factorization.

20220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306383.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 20220222 is about 4496.6901160743. The cubic root of 20220222 is about 272.4344179074.

Adding to 20220222 its reverse (22202202), we get a palindrome (42422424).

It can be divided in two parts, 202202 and 22, that multiplied together give a palindrome (4448444).

The spelling of 20220222 in words is "twenty million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 11 22 33 66 306367 612734 919101 1838202 3370037 6740074 10110111 20220222