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120201102221 = 1004591196519
BaseRepresentation
bin110111111110010001…
…0110100001110001101
3102111021000120122212212
41233330202310032031
53432132440232341
6131115234440205
711453460340154
oct1577442641615
9374230518785
10120201102221
1146a82430202
121b367133065
13b447a69275
145b63d3459b
1531d797b5eb
hex1bfc8b438d

120201102221 has 4 divisors (see below), whose sum is σ = 120202399200. Its totient is φ = 120199805244.

The previous prime is 120201102199. The next prime is 120201102227. The reversal of 120201102221 is 122201102021.

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 120201102221 - 218 = 120200840077 is a prime.

It is a super-2 number, since 2×1202011022212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120201102196 and 120201102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201102227) 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, 497801 + ... + 698718.

It is an arithmetic number, because the mean of its divisors is an integer number (30050599800).

Almost surely, 2120201102221 is an apocalyptic number.

It is an amenable number.

120201102221 is a deficient number, since it is larger than the sum of its proper divisors (1296979).

120201102221 is a wasteful number, since it uses less digits than its factorization.

120201102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296978.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120201102221 its reverse (122201102021), we get a palindrome (242402204242).

The spelling of 120201102221 in words is "one hundred twenty billion, two hundred one million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 100459 1196519 120201102221