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12213212021013 = 331929141361529
BaseRepresentation
bin1011000110111001110000…
…1010100000000100010101
31121020120102202002222220110
42301232130022200010111
53100100124234133023
641550401103353233
72400242531206143
oct261563412400425
947216382088813
1012213212021013
113989659873a33
121453003bb2819
136a7915cb6473
143031a065a593
15162a61227a93
hexb1b9c2a0115

12213212021013 has 16 divisors (see below), whose sum is σ = 16827676531200. Its totient is φ = 7871009879040.

The previous prime is 12213212020981. The next prime is 12213212021029. The reversal of 12213212021013 is 31012021231221.

It is not a de Polignac number, because 12213212021013 - 25 = 12213212020981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213212021113) 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, 70594368 + ... + 70767161.

It is an arithmetic number, because the mean of its divisors is an integer number (1051729783200).

Almost surely, 212213212021013 is an apocalyptic number.

It is an amenable number.

12213212021013 is a deficient number, since it is larger than the sum of its proper divisors (4614464510187).

12213212021013 is a wasteful number, since it uses less digits than its factorization.

12213212021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141362492.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12213212021013 its reverse (31012021231221), we get a palindrome (43225233252234).

The spelling of 12213212021013 in words is "twelve trillion, two hundred thirteen billion, two hundred twelve million, twenty-one thousand, thirteen".

Divisors: 1 3 31 93 929 2787 28799 86397 141361529 424084587 4382207399 13146622197 131324860441 393974581323 4071070673671 12213212021013