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10022100221 = 71975354137
BaseRepresentation
bin10010101010101110…
…10001110011111101
3221212110100102221002
421111113101303331
5131011124201341
64334252220045
7503233306040
oct112527216375
927773312832
1010022100221
11428323a261
121b3846a625
13c39457823
146b1076c57
153d9cc629b
hex2555d1cfd

10022100221 has 8 divisors (see below), whose sum is σ = 12056662080. Its totient is φ = 8138246688.

The previous prime is 10022100203. The next prime is 10022100223. The reversal of 10022100221 is 12200122001.

Adding to 10022100221 its reverse (12200122001), we get a palindrome (22222222222).

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 10022100221 - 226 = 9954991357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022100223) 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, 37676936 + ... + 37677201.

It is an arithmetic number, because the mean of its divisors is an integer number (1507082760).

Almost surely, 210022100221 is an apocalyptic number.

It is an amenable number.

10022100221 is a deficient number, since it is larger than the sum of its proper divisors (2034561859).

10022100221 is an equidigital number, since it uses as much as digits as its factorization.

10022100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75354163.

The product of its (nonzero) digits is 16, while the sum is 11.

The spelling of 10022100221 in words is "ten billion, twenty-two million, one hundred thousand, two hundred twenty-one".

Divisors: 1 7 19 133 75354137 527478959 1431728603 10022100221