Search a number
2122220983 is a prime number
BaseRepresentation
bin111111001111110…
…1000010110110111
312110220022222220011
41332133220112313
513321242032413
6550330321051
7103406403121
oct17637502667
95426288804
102122220983
11999a36043
124b2889187
1327a89b17c
14161bd2211
15c64a633d
hex7e7e85b7

2122220983 has 2 divisors, whose sum is σ = 2122220984. Its totient is φ = 2122220982.

The previous prime is 2122220981. The next prime is 2122221019. The reversal of 2122220983 is 3890222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122220983 - 21 = 2122220981 is a prime.

Together with 2122220981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122220981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061110491 + 1061110492.

It is an arithmetic number, because the mean of its divisors is an integer number (1061110492).

Almost surely, 22122220983 is an apocalyptic number.

2122220983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122220983 is an equidigital number, since it uses as much as digits as its factorization.

2122220983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2122220983 is about 46067.5697535696. The cubic root of 2122220983 is about 1285.0801088607.

The spelling of 2122220983 in words is "two billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred eighty-three".