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31222122132001 = 223958714604101
BaseRepresentation
bin1110001100101011101110…
…11111111011001000100001
311002112210202101002121112211
413012111313133323020201
513043020401231211001
6150223124521522121
76401503202202013
oct706256737731041
9132483671077484
1031222122132001
119a48255a91369
123603081643341
131456305c6b398
1479d2319681b3
1539225bbba351
hex1c65777fb221

31222122132001 has 8 divisors (see below), whose sum is σ = 31365405114624. Its totient is φ = 31078868377200.

The previous prime is 31222122131951. The next prime is 31222122132013. The reversal of 31222122132001 is 10023122122213.

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 31222122132001 - 233 = 31213532197409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31222122132031) 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, 5164150 + ... + 9439951.

It is an arithmetic number, because the mean of its divisors is an integer number (3920675639328).

Almost surely, 231222122132001 is an apocalyptic number.

It is an amenable number.

31222122132001 is a deficient number, since it is larger than the sum of its proper divisors (143282982623).

31222122132001 is a wasteful number, since it uses less digits than its factorization.

31222122132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14613911.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31222122132001 its reverse (10023122122213), we get a palindrome (41245244254214).

The spelling of 31222122132001 in words is "thirty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred thirty-two thousand, one".

Divisors: 1 223 9587 2137901 14604101 3256714523 140009516287 31222122132001