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122213030323213 = 788315503365511
BaseRepresentation
bin11011110010011011110000…
…010000100110010000001101
3121000201110012012202120111101
4123302123300100212100031
5112004314241230320323
61111531520245023101
734512412551436564
oct3362336020462015
9530643165676441
10122213030323213
1135a39289591955
12118598546b4a91
13532684073b01b
1422271dc3c0bdb
15e1e0949e8dad
hex6f26f042640d

122213030323213 has 4 divisors (see below), whose sum is σ = 122228533696608. Its totient is φ = 122197526949820.

The previous prime is 122213030323183. The next prime is 122213030323261. The reversal of 122213030323213 is 312323030312221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122213030323213 - 213 = 122213030315021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213000323213) 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, 7751674873 + ... + 7751690638.

It is an arithmetic number, because the mean of its divisors is an integer number (30557133424152).

Almost surely, 2122213030323213 is an apocalyptic number.

It is an amenable number.

122213030323213 is a deficient number, since it is larger than the sum of its proper divisors (15503373395).

122213030323213 is an equidigital number, since it uses as much as digits as its factorization.

122213030323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15503373394.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 122213030323213 its reverse (312323030312221), we get a palindrome (434536060635434).

The spelling of 122213030323213 in words is "one hundred twenty-two trillion, two hundred thirteen billion, thirty million, three hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 7883 15503365511 122213030323213