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31222120201033 = 167389480613891
BaseRepresentation
bin1110001100101011101110…
…11000100011101101001001
311002112210202020110111202111
413012111313120203231021
513043020400232413113
6150223124412302321
76401503146610246
oct706256730435511
9132483666414674
1031222120201033
119a48254992623
123603080a719a1
1314563057434b8
1479d2315c45cd
1539225b93813d
hex1c6577623b49

31222120201033 has 8 divisors (see below), whose sum is σ = 31489822203840. Its totient is φ = 30955379427120.

The previous prime is 31222120200991. The next prime is 31222120201061. The reversal of 31222120201033 is 33010202122213.

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 31222120201033 - 237 = 31084681247561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31222120200995 and 31222120201013.

It is not an unprimeable number, because it can be changed into a prime (31222120211033) 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, 240241983 + ... + 240371908.

It is an arithmetic number, because the mean of its divisors is an integer number (3936227775480).

Almost surely, 231222120201033 is an apocalyptic number.

It is an amenable number.

31222120201033 is a deficient number, since it is larger than the sum of its proper divisors (267702002807).

31222120201033 is a wasteful number, since it uses less digits than its factorization.

31222120201033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480614447.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31222120201033 its reverse (33010202122213), we get a palindrome (64232322323246).

The spelling of 31222120201033 in words is "thirty-one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred one thousand, thirty-three".

Divisors: 1 167 389 64963 480613891 80262519797 186958803599 31222120201033