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22211013131 = 149314876767
BaseRepresentation
bin10100101011111000…
…010010101000001011
32010022220221101001222
4110223320102220023
5330442004410011
614111551032255
71414260332216
oct245370225013
963286841058
1022211013131
1194685a09aa
12437a50b68b
13212c794028
141109bcc77d
1589ee10ddb
hex52be12a0b

22211013131 has 4 divisors (see below), whose sum is σ = 22225891392. Its totient is φ = 22196134872.

The previous prime is 22211013113. The next prime is 22211013137. The reversal of 22211013131 is 13131011222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22211013131 - 214 = 22210996747 is a prime.

It is a super-2 number, since 2×222110131312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211013137) 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, 7436891 + ... + 7439876.

It is an arithmetic number, because the mean of its divisors is an integer number (5556472848).

Almost surely, 222211013131 is an apocalyptic number.

22211013131 is a deficient number, since it is larger than the sum of its proper divisors (14878261).

22211013131 is a wasteful number, since it uses less digits than its factorization.

22211013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878260.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22211013131 its reverse (13131011222), we get a palindrome (35342024353).

The spelling of 22211013131 in words is "twenty-two billion, two hundred eleven million, thirteen thousand, one hundred thirty-one".

Divisors: 1 1493 14876767 22211013131