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22212210001 = 163214363589
BaseRepresentation
bin10100101011111100…
…110110110101010001
32010100000012011212111
4110223330312311101
5330442311210001
614112032425321
71414303445512
oct245374666521
963300164774
1022212210001
119469239153
12437a9a8241
13212cac2a37
14110a020a09
158a009a851
hex52bf36d51

22212210001 has 8 divisors (see below), whose sum is σ = 22359261440. Its totient is φ = 22065290352.

The previous prime is 22212209969. The next prime is 22212210023. The reversal of 22212210001 is 10001221222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22212210001 - 25 = 22212209969 is a prime.

It is a super-4 number, since 4×222122100014 (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212210071) 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, 317515 + ... + 381103.

It is an arithmetic number, because the mean of its divisors is an integer number (2794907680).

Almost surely, 222212210001 is an apocalyptic number.

It is an amenable number.

22212210001 is a deficient number, since it is larger than the sum of its proper divisors (147051439).

22212210001 is a wasteful number, since it uses less digits than its factorization.

22212210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65895.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22212210001 its reverse (10001221222), we get a palindrome (32213431223).

The spelling of 22212210001 in words is "twenty-two billion, two hundred twelve million, two hundred ten thousand, one".

Divisors: 1 163 2143 63589 349309 10365007 136271227 22212210001