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222101010021101 = 2954282114108989
BaseRepresentation
bin110010011111111111101011…
…110011100111101011101101
31002010101122112021010010220212
4302133333223303213223231
5213102400332031133401
62104211443451552205
764532161035012101
oct6237775363475355
91063348467103825
10222101010021101
116484a566aa5052
1220ab07b6a5b665
1396c105c951c23
143cbba6398b901
151aa2554b4cdbb
hexc9ffebce7aed

222101010021101 has 8 divisors (see below), whose sum is σ = 229760105093400. Its totient is φ = 214441944252480.

The previous prime is 222101010021073. The next prime is 222101010021131. The reversal of 222101010021101 is 101120010101222.

It can be written as a sum of positive squares in 4 ways, for example, as 11694525915076 + 210406484106025 = 3419726^2 + 14505395^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222101010021101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101010021131) 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, 8687315 + ... + 22796303.

It is an arithmetic number, because the mean of its divisors is an integer number (28720013136675).

Almost surely, 2222101010021101 is an apocalyptic number.

It is an amenable number.

222101010021101 is a deficient number, since it is larger than the sum of its proper divisors (7659095072299).

222101010021101 is a wasteful number, since it uses less digits than its factorization.

222101010021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14651839.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 222101010021101 its reverse (101120010101222), we get a palindrome (323221020122323).

The spelling of 222101010021101 in words is "two hundred twenty-two trillion, one hundred one billion, ten million, twenty-one thousand, one hundred one".

Divisors: 1 29 542821 14108989 15741809 409160681 7658655517969 222101010021101