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10222221213 = 3237131234331
BaseRepresentation
bin10011000010100101…
…01011011110011101
3222101101220122022200
421201102223132131
5131413342034323
64410201402113
7511213306131
oct114122533635
928341818280
1010222221213
1143761a5106
121b93499339
13c6ba54c09
146cd88b3c1
153ec656443
hex2614ab79d

10222221213 has 24 divisors (see below), whose sum is σ = 15280321056. Its totient is φ = 6579986400.

The previous prime is 10222221203. The next prime is 10222221221. The reversal of 10222221213 is 31212222201.

10222221213 is a `hidden beast` number, since 10 + 222 + 221 + 213 = 666.

It is not a de Polignac number, because 10222221213 - 24 = 10222221197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222221203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73543 + ... + 160788.

It is an arithmetic number, because the mean of its divisors is an integer number (636680044).

Almost surely, 210222221213 is an apocalyptic number.

It is an amenable number.

10222221213 is a deficient number, since it is larger than the sum of its proper divisors (5058099843).

10222221213 is a wasteful number, since it uses less digits than its factorization.

10222221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234505 (or 234502 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10222221213 its reverse (31212222201), we get a palindrome (41434443414).

The spelling of 10222221213 in words is "ten billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 3 9 37 111 131 333 393 1179 4847 14541 43623 234331 702993 2108979 8670247 26010741 30697361 78032223 92092083 276276249 1135802357 3407407071 10222221213