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220133330212031 = 1999110121725969
BaseRepresentation
bin110010000011010111001000…
…111100110101010010111111
31001212102112121021102002221022
4302003113020330311102333
5212323131030013241111
62100103504504454355
764240052064416645
oct6203271074652277
91055375537362838
10220133330212031
116416102604a065
1220833392a7a3bb
1395aa63a3770b2
143c5071d74d195
151a6b28e3082db
hexc835c8f354bf

220133330212031 has 4 divisors (see below), whose sum is σ = 220243451940000. Its totient is φ = 220023208484064.

The previous prime is 220133330212013. The next prime is 220133330212049. The reversal of 220133330212031 is 130212033331022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (220133330212013) and next prime (220133330212049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220133330212031 is a prime.

It is a super-2 number, since 2×2201333302120312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220163330212031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55060860986 + ... + 55060864983.

It is an arithmetic number, because the mean of its divisors is an integer number (55060862985000).

Almost surely, 2220133330212031 is an apocalyptic number.

220133330212031 is a deficient number, since it is larger than the sum of its proper divisors (110121727969).

220133330212031 is a wasteful number, since it uses less digits than its factorization.

220133330212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110121727968.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 220133330212031 its reverse (130212033331022), we get a palindrome (350345363543053).

The spelling of 220133330212031 in words is "two hundred twenty trillion, one hundred thirty-three billion, three hundred thirty million, two hundred twelve thousand, thirty-one".

Divisors: 1 1999 110121725969 220133330212031