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122112481 is a prime number
BaseRepresentation
bin1110100011101…
…00100111100001
322111202221211111
413101310213201
5222230044411
620041143321
73011640031
oct721644741
9274687744
10122112481
1162a24a07
1234a8ab41
131c3b660a
14123098c1
15aac1721
hex74749e1

122112481 has 2 divisors, whose sum is σ = 122112482. Its totient is φ = 122112480.

The previous prime is 122112461. The next prime is 122112491. The reversal of 122112481 is 184211221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118048225 + 4064256 = 10865^2 + 2016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122112481 is a prime.

It is a super-2 number, since 2×1221124812 = 29822916031950722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122112421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61056240 + 61056241.

It is an arithmetic number, because the mean of its divisors is an integer number (61056241).

Almost surely, 2122112481 is an apocalyptic number.

It is an amenable number.

122112481 is a deficient number, since it is larger than the sum of its proper divisors (1).

122112481 is an equidigital number, since it uses as much as digits as its factorization.

122112481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 22.

The square root of 122112481 is about 11050.4516197303. The cubic root of 122112481 is about 496.1199428648.

The spelling of 122112481 in words is "one hundred twenty-two million, one hundred twelve thousand, four hundred eighty-one".