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32212132121 = 1318133136649
BaseRepresentation
bin11101111111111111…
…100010000100011001
310002010220210212011102
4131333333202010121
51011432301211441
622444213441145
72220150414431
oct357777420431
9102126725142
1032212132121
111272a9aa6a4
1262ab9401b5
133064783910
1417b81632c1
15c87e4069b
hex77ffe2119

32212132121 has 8 divisors (see below), whose sum is σ = 34692155400. Its totient is φ = 29732418432.

The previous prime is 32212132103. The next prime is 32212132223. The reversal of 32212132121 is 12123121223.

It can be written as a sum of positive squares in 4 ways, for example, as 6116960521 + 26095171600 = 78211^2 + 161540^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 32212132121 - 214 = 32212115737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32212132093 and 32212132102.

It is not an unprimeable number, because it can be changed into a prime (32212132621) 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, 167405 + ... + 304053.

It is an arithmetic number, because the mean of its divisors is an integer number (4336519425).

Almost surely, 232212132121 is an apocalyptic number.

It is an amenable number.

32212132121 is a deficient number, since it is larger than the sum of its proper divisors (2480023279).

32212132121 is a wasteful number, since it uses less digits than its factorization.

32212132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154795.

The product of its digits is 288, while the sum is 20.

Adding to 32212132121 its reverse (12123121223), we get a palindrome (44335253344).

The spelling of 32212132121 in words is "thirty-two billion, two hundred twelve million, one hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 13 18133 136649 235729 1776437 2477856317 32212132121