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120213003221 = 631190511891
BaseRepresentation
bin110111111110101000…
…0001101101111010101
3102111021211222021222122
41233331100031233111
53432144012100341
6131120341505325
711453663445023
oct1577520155725
9374254867878
10120213003221
1146a89119643
121b36b112245
13b44a37518c
145b65751713
1531d8a2c94b
hex1bfd40dbd5

120213003221 has 4 divisors (see below), whose sum is σ = 120403515744. Its totient is φ = 120022490700.

The previous prime is 120213003151. The next prime is 120213003247. The reversal of 120213003221 is 122300312021.

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 a de Polignac number, because none of the positive numbers 2k-120213003221 is a prime.

It is a super-2 number, since 2×1202130032212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120213003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120213008221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95255315 + ... + 95256576.

It is an arithmetic number, because the mean of its divisors is an integer number (30100878936).

Almost surely, 2120213003221 is an apocalyptic number.

It is an amenable number.

120213003221 is a deficient number, since it is larger than the sum of its proper divisors (190512523).

120213003221 is an equidigital number, since it uses as much as digits as its factorization.

120213003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190512522.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120213003221 its reverse (122300312021), we get a palindrome (242513315242).

The spelling of 120213003221 in words is "one hundred twenty billion, two hundred thirteen million, three thousand, two hundred twenty-one".

Divisors: 1 631 190511891 120213003221