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222222201012101 = 1019972206840333
BaseRepresentation
bin110010100001110000100011…
…010110100011111110000101
31002010211020100021100100221002
4302201300203112203332011
5213111342031424341401
62104343245251303045
764544011205311343
oct6241604326437605
91063736307310832
10222222201012101
11648969a7172354
1220b101995aaa85
1396cc6047c7ca4
143cc387d15a993
151aa579945ea6b
hexca1c235a3f85

222222201012101 has 8 divisors (see below), whose sum is σ = 224647518639864. Its totient is φ = 219801297067200.

The previous prime is 222222201011939. The next prime is 222222201012131. The reversal of 222222201012101 is 101210102222222.

It can be written as a sum of positive squares in 4 ways, for example, as 166802365209601 + 55419835802500 = 12915199^2 + 7444450^2 .

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 222222201012101 - 246 = 151853456834437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222201012131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103319470 + ... + 1103520863.

It is an arithmetic number, because the mean of its divisors is an integer number (28080939829983).

Almost surely, 2222222201012101 is an apocalyptic number.

It is an amenable number.

222222201012101 is a deficient number, since it is larger than the sum of its proper divisors (2425317627763).

222222201012101 is a wasteful number, since it uses less digits than its factorization.

222222201012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206841431.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222222201012101 its reverse (101210102222222), we get a palindrome (323432303234323).

The spelling of 222222201012101 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred one million, twelve thousand, one hundred one".

Divisors: 1 101 997 100697 2206840333 222890873633 2200219812001 222222201012101