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23212222201213 = 1910913229346793
BaseRepresentation
bin1010100011100100001000…
…10000100011110101111101
310001012001210200020121201021
411101302010100203311331
511020302112340414323
6121211314143544141
74614012335151463
oct521620420436575
9101161720217637
1023212222201213
11743a280322651
12272a8262bb051
13cc4b98325c16
145a3698574833
152a3c0aa6205d
hex151c84423d7d

23212222201213 has 16 divisors (see below), whose sum is σ = 24463958500800. Its totient is φ = 21963502581120.

The previous prime is 23212222201187. The next prime is 23212222201219. The reversal of 23212222201213 is 31210222221232.

It is a cyclic number.

It is not a de Polignac number, because 23212222201213 - 213 = 23212222193021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212222201219) 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, 66760545 + ... + 67107337.

It is an arithmetic number, because the mean of its divisors is an integer number (1528997406300).

Almost surely, 223212222201213 is an apocalyptic number.

It is an amenable number.

23212222201213 is a deficient number, since it is larger than the sum of its proper divisors (1251736299587).

23212222201213 is a wasteful number, since it uses less digits than its factorization.

23212222201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351132.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 23212222201213 its reverse (31210222221232), we get a palindrome (54422444422445).

The spelling of 23212222201213 in words is "twenty-three trillion, two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, two hundred thirteen".

Divisors: 1 19 1091 3229 20729 61351 346793 3522839 6589067 66933941 378351163 1119794597 7188672097 21276097343 1221695905327 23212222201213