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22211022101 = 108720433323
BaseRepresentation
bin10100101011111000…
…010100110100010101
32010022220221211101012
4110223320110310111
5330442010201401
614111551142005
71414260400322
oct245370246425
963286854335
1022211022101
1194685a7714
12437a514905
13212c798138
141109bd1b49
1589ee138bb
hex52be14d15

22211022101 has 4 divisors (see below), whose sum is σ = 22231456512. Its totient is φ = 22190587692.

The previous prime is 22211022083. The next prime is 22211022139. The reversal of 22211022101 is 10122011222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22211022101 - 214 = 22211005717 is a prime.

It is a super-2 number, since 2×222110221012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211022151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10215575 + ... + 10217748.

It is an arithmetic number, because the mean of its divisors is an integer number (5557864128).

Almost surely, 222211022101 is an apocalyptic number.

It is an amenable number.

22211022101 is a deficient number, since it is larger than the sum of its proper divisors (20434411).

22211022101 is a wasteful number, since it uses less digits than its factorization.

22211022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20434410.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22211022101 its reverse (10122011222), we get a palindrome (32333033323).

The spelling of 22211022101 in words is "twenty-two billion, two hundred eleven million, twenty-two thousand, one hundred one".

Divisors: 1 1087 20433323 22211022101