Base | Representation |
---|---|
bin | 10100011111111110… |
… | …000100101010101101 |
3 | 2002210222221221000220 |
4 | 110133332010222231 |
5 | 330034331432341 |
6 | 14040052241553 |
7 | 1406313063141 |
oct | 243776045255 |
9 | 62728857026 |
10 | 22011202221 |
11 | 9375828018 |
12 | 43236102b9 |
13 | 20ca274b18 |
14 | 10cb459221 |
15 | 88c5e2a66 |
hex | 51ff84aad |
22011202221 has 8 divisors (see below), whose sum is σ = 29376684480. Its totient is φ = 14659927392.
The previous prime is 22011202163. The next prime is 22011202229. The reversal of 22011202221 is 12220211022.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 22011202221 - 27 = 22011202093 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 22011202221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22011202229) 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, 3548241 + ... + 3554438.
It is an arithmetic number, because the mean of its divisors is an integer number (3672085560).
Almost surely, 222011202221 is an apocalyptic number.
It is an amenable number.
22011202221 is a deficient number, since it is larger than the sum of its proper divisors (7365482259).
22011202221 is a wasteful number, since it uses less digits than its factorization.
22011202221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7103715.
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 22011202221 its reverse (12220211022), we get a palindrome (34231413243).
The spelling of 22011202221 in words is "twenty-two billion, eleven million, two hundred two thousand, two hundred twenty-one".
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