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22212123141 = 3134113891259
BaseRepresentation
bin10100101011111100…
…100001101000000101
32010100000000202201110
4110223330201220011
5330442300420031
614112030515233
71414302634335
oct245374415005
963300022643
1022212123141
11946918996a
12437a965b19
13212ca92340
141109ddb0c5
158a007ec46
hex52bf21a05

22212123141 has 16 divisors (see below), whose sum is σ = 32672243520. Its totient is φ = 13335607680.

The previous prime is 22212123137. The next prime is 22212123169. The reversal of 22212123141 is 14132121222.

It is a happy number.

It is not a de Polignac number, because 22212123141 - 22 = 22212123137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212123181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6944031 + ... + 6947228.

It is an arithmetic number, because the mean of its divisors is an integer number (2042015220).

Almost surely, 222212123141 is an apocalyptic number.

It is an amenable number.

22212123141 is a deficient number, since it is larger than the sum of its proper divisors (10460120379).

22212123141 is a wasteful number, since it uses less digits than its factorization.

22212123141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13891316.

The product of its digits is 384, while the sum is 21.

Adding to 22212123141 its reverse (14132121222), we get a palindrome (36344244363).

The spelling of 22212123141 in words is "twenty-two billion, two hundred twelve million, one hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 3 13 39 41 123 533 1599 13891259 41673777 180586367 541759101 569541619 1708624857 7404041047 22212123141