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10022222212 = 222505555553
BaseRepresentation
bin10010101010101111…
…01111100110000100
3221212110120122021021
421111113233212010
5131011142102322
64334255000524
7503234324512
oct112527574604
927773518237
1010022222212
114283312982
121b38509144
13c3949b202
146b10a94b2
153d9cec4c7
hex2555ef984

10022222212 has 6 divisors (see below), whose sum is σ = 17538888878. Its totient is φ = 5011111104.

The previous prime is 10022222209. The next prime is 10022222219. The reversal of 10022222212 is 21222222001.

It can be written as a sum of positive squares in only one way, i.e., 9707372676 + 314849536 = 98526^2 + 17744^2 .

It is not an unprimeable number, because it can be changed into a prime (10022222219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252777773 + ... + 1252777780.

Almost surely, 210022222212 is an apocalyptic number.

It is an amenable number.

10022222212 is a deficient number, since it is larger than the sum of its proper divisors (7516666666).

10022222212 is a wasteful number, since it uses less digits than its factorization.

10022222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505555557 (or 2505555555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10022222212 its reverse (21222222001), we get a palindrome (31244444213).

The spelling of 10022222212 in words is "ten billion, twenty-two million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 2505555553 5011111106 10022222212