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20022203132231 = 67092984379659
BaseRepresentation
bin1001000110101110010000…
…10011100010100101000111
32121220002210202120111011112
410203113020103202211013
510111020433000212411
6110330023444155235
74134361600361546
oct443271023424507
977802722514145
1020022203132231
11641a4067659a3
1222b452b398b1b
13b231162488c1
144d3118d9815d
1524ac5423bb8b
hex1235c84e2947

20022203132231 has 4 divisors (see below), whose sum is σ = 20025187518600. Its totient is φ = 20019218745864.

The previous prime is 20022203132221. The next prime is 20022203132293. The reversal of 20022203132231 is 13223130222002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20022203132231 - 242 = 15624156621127 is a prime.

It is a super-2 number, since 2×200222031322312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022203132197 and 20022203132206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022203132201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492183121 + ... + 1492196538.

It is an arithmetic number, because the mean of its divisors is an integer number (5006296879650).

Almost surely, 220022203132231 is an apocalyptic number.

20022203132231 is a deficient number, since it is larger than the sum of its proper divisors (2984386369).

20022203132231 is an equidigital number, since it uses as much as digits as its factorization.

20022203132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984386368.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20022203132231 its reverse (13223130222002), we get a palindrome (33245333354233).

The spelling of 20022203132231 in words is "twenty trillion, twenty-two billion, two hundred three million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 6709 2984379659 20022203132231