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22011010101 = 322445667789
BaseRepresentation
bin10100011111111101…
…010101110000110101
32002210222121011111100
4110133331111300311
5330034304310401
614040044200313
71406311333053
oct243775256065
962728534440
1022011010101
119375706743
124323539099
1320ca208542
1410cb4091d3
1588c5a5b86
hex51ff55c35

22011010101 has 6 divisors (see below), whose sum is σ = 31793681270. Its totient is φ = 14674006728.

The previous prime is 22011010069. The next prime is 22011010103. The reversal of 22011010101 is 10101011022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21925909476 + 85100625 = 148074^2 + 9225^2 .

It is not a de Polignac number, because 22011010101 - 25 = 22011010069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2445667789 = 22011010101 / (2 + 2 + 0 + 1 + 1 + 0 + 1 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011010103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222833886 + ... + 1222833903.

Almost surely, 222011010101 is an apocalyptic number.

It is an amenable number.

22011010101 is a deficient number, since it is larger than the sum of its proper divisors (9782671169).

22011010101 is a wasteful number, since it uses less digits than its factorization.

22011010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445667795 (or 2445667792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 22011010101 its reverse (10101011022), we get a palindrome (32112021123).

The spelling of 22011010101 in words is "twenty-two billion, eleven million, ten thousand, one hundred one".

Divisors: 1 3 9 2445667789 7337003367 22011010101