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22211002131 = 327539268843
BaseRepresentation
bin10100101011111000…
…001111111100010011
32010022220220210222120
4110223320033330103
5330442004032011
614111550505323
71414260255153
oct245370177423
963286823876
1022211002131
11946859370a
12437a505243
13212c78c016
141109bc8763
1589ee0ca06
hex52be0ff13

22211002131 has 8 divisors (see below), whose sum is σ = 29615855040. Its totient is φ = 14806741992.

The previous prime is 22211002123. The next prime is 22211002159. The reversal of 22211002131 is 13120011222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22211002131 - 23 = 22211002123 is a prime.

It is a super-2 number, since 2×222110021312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22211002131.

It is not an unprimeable number, because it can be changed into a prime (22211002631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51805 + ... + 217038.

It is an arithmetic number, because the mean of its divisors is an integer number (3701981880).

Almost surely, 222211002131 is an apocalyptic number.

22211002131 is a deficient number, since it is larger than the sum of its proper divisors (7404852909).

22211002131 is a wasteful number, since it uses less digits than its factorization.

22211002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296385.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22211002131 its reverse (13120011222), we get a palindrome (35331013353).

Subtracting from 22211002131 its reverse (13120011222), we obtain a palindrome (9090990909).

The spelling of 22211002131 in words is "twenty-two billion, two hundred eleven million, two thousand, one hundred thirty-one".

Divisors: 1 3 27539 82617 268843 806529 7403667377 22211002131