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30222110212031 = 171777771188943
BaseRepresentation
bin1101101111100101000100…
…01001001011111110111111
310222000012112211020120221102
412313302202021023332333
512430124340203241111
6144135502403523315
76236322031135613
oct667624211137677
9128005484216842
1030222110212031
1196a2141364861
1234812b768953b
1313b2c1838b10a
14766a87adb343
1537622e39c13b
hex1b7ca224bfbf

30222110212031 has 4 divisors (see below), whose sum is σ = 31999881400992. Its totient is φ = 28444339023072.

The previous prime is 30222110212009. The next prime is 30222110212033. The reversal of 30222110212031 is 13021201122203.

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

It is a cyclic number.

It is not a de Polignac number, because 30222110212031 - 226 = 30222043103167 is a prime.

It is a super-2 number, since 2×302221102120312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30222110211994 and 30222110212012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222110212033) 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, 888885594455 + ... + 888885594488.

It is an arithmetic number, because the mean of its divisors is an integer number (7999970350248).

Almost surely, 230222110212031 is an apocalyptic number.

30222110212031 is a deficient number, since it is larger than the sum of its proper divisors (1777771188961).

30222110212031 is a wasteful number, since it uses less digits than its factorization.

30222110212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777771188960.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30222110212031 its reverse (13021201122203), we get a palindrome (43243311334234).

The spelling of 30222110212031 in words is "thirty trillion, two hundred twenty-two billion, one hundred ten million, two hundred twelve thousand, thirty-one".

Divisors: 1 17 1777771188943 30222110212031