Base | Representation |
---|---|
bin | 10100100000100100… |
… | …010010011010100001 |
3 | 2002211200210212211210 |
4 | 110200210102122201 |
5 | 330044413020001 |
6 | 14041051100333 |
7 | 1406464165404 |
oct | 244044223241 |
9 | 62750725753 |
10 | 22021220001 |
11 | 938044a580 |
12 | 4326a416a9 |
13 | 20cc3717c1 |
14 | 10cc905d3b |
15 | 88d420dd6 |
hex | 5209126a1 |
22021220001 has 32 divisors (see below), whose sum is σ = 34352916480. Its totient is φ = 12405182400.
The previous prime is 22021219973. The next prime is 22021220029. The reversal of 22021220001 is 10002212022.
It is an interprime number because it is at equal distance from previous prime (22021219973) and next prime (22021220029).
It is not a de Polignac number, because 22021220001 - 26 = 22021219937 is a prime.
It is a super-4 number, since 4×220212200014 (a number of 42 digits) contains 4444 as substring.
It is not an unprimeable number, because it can be changed into a prime (22021220701) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298105 + ... + 364566.
It is an arithmetic number, because the mean of its divisors is an integer number (1073528640).
Almost surely, 222021220001 is an apocalyptic number.
It is an amenable number.
22021220001 is a deficient number, since it is larger than the sum of its proper divisors (12331696479).
22021220001 is a wasteful number, since it uses less digits than its factorization.
22021220001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 662757.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 22021220001 its reverse (10002212022), we get a palindrome (32023432023).
The spelling of 22021220001 in words is "twenty-two billion, twenty-one million, two hundred twenty thousand, one".
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