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12220031030221 = 722333829231409
BaseRepresentation
bin1011000111010011001010…
…0110111101001111001101
31121021020000222021120000001
42301310302212331033031
53100203110420431341
641553445454404301
72400603521632360
oct261646246751715
947236028246001
1012220031030221
113991538a39533
1214543a7800691
136a846195c561
1430364a1420d7
15162d0ebded31
hexb1d329bd3cd

12220031030221 has 16 divisors (see below), whose sum is σ = 14028851737600. Its totient is φ = 10426989005568.

The previous prime is 12220031030173. The next prime is 12220031030231. The reversal of 12220031030221 is 12203013002221.

It is a cyclic number.

It is not a de Polignac number, because 12220031030221 - 231 = 12217883546573 is a prime.

It is a super-2 number, since 2×122200310302212 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220031030231) 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, 52691365 + ... + 52922773.

It is an arithmetic number, because the mean of its divisors is an integer number (876803233600).

Almost surely, 212220031030221 is an apocalyptic number.

It is an amenable number.

12220031030221 is a deficient number, since it is larger than the sum of its proper divisors (1808820707379).

12220031030221 is a wasteful number, since it uses less digits than its factorization.

12220031030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265468.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12220031030221 its reverse (12203013002221), we get a palindrome (24423044032442).

The spelling of 12220031030221 in words is "twelve trillion, two hundred twenty billion, thirty-one million, thirty thousand, two hundred twenty-one".

Divisors: 1 7 223 1561 33829 231409 236803 1619863 7543867 51604207 52807069 361229449 7828335061 54798345427 1745718718603 12220031030221