Search a number
-
+
122121119 is a prime number
BaseRepresentation
bin1110100011101…
…10101110011111
322111210101200102
413101312232133
5222230333434
620041251315
73012004151
oct721665637
9274711612
10122121119
1162a3044a
1234a93b3b
131c3ba523
141230cad1
15aac407e
hex7476b9f

122121119 has 2 divisors, whose sum is σ = 122121120. Its totient is φ = 122121118.

The previous prime is 122121107. The next prime is 122121187. The reversal of 122121119 is 911121221.

It is a weak prime.

It is an emirp because it is prime and its reverse (911121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122121119 - 28 = 122120863 is a prime.

It is a super-2 number, since 2×1221211192 = 29827135411624322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122121119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060559 + 61060560.

It is an arithmetic number, because the mean of its divisors is an integer number (61060560).

Almost surely, 2122121119 is an apocalyptic number.

122121119 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121119 is an equidigital number, since it uses as much as digits as its factorization.

122121119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 20.

The square root of 122121119 is about 11050.8424565732. The cubic root of 122121119 is about 496.1316407764.

It can be divided in two parts, 12212 and 1119, that added together give a palindrome (13331).

The spelling of 122121119 in words is "one hundred twenty-two million, one hundred twenty-one thousand, one hundred nineteen".