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222020002212 = 22318501666851
BaseRepresentation
bin1100111011000101101…
…1000110000110100100
3210020001221210200211220
43032301123012012210
512114144110032322
6245554455100340
722016601611121
oct3166133060644
9706057720756
10222020002212
1186181559838
12370420716b0
1317c23355598
14aa6278b748
155b9670455c
hex33b16c61a4

222020002212 has 12 divisors (see below), whose sum is σ = 518046671856. Its totient is φ = 74006667400.

The previous prime is 222020002201. The next prime is 222020002219. The reversal of 222020002212 is 212200020222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 222020002191 and 222020002200.

It is not an unprimeable number, because it can be changed into a prime (222020002219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250833414 + ... + 9250833437.

It is an arithmetic number, because the mean of its divisors is an integer number (43170555988).

Almost surely, 2222020002212 is an apocalyptic number.

It is an amenable number.

222020002212 is an abundant number, since it is smaller than the sum of its proper divisors (296026669644).

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

222020002212 is a wasteful number, since it uses less digits than its factorization.

222020002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501666858 (or 18501666856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222020002212 its reverse (212200020222), we get a palindrome (434220022434).

The spelling of 222020002212 in words is "two hundred twenty-two billion, twenty million, two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 18501666851 37003333702 55505000553 74006667404 111010001106 222020002212