122022457 has 2 divisors, whose sum is σ = 122022458. Its totient is φ = 122022456.

The previous prime is 122022409. The next prime is 122022469. The reversal of 122022457 is 754220221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 53860921 = 8256^2 + 7339^2 .

It is an emirp because it is prime and its reverse (754220221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122022457 is a prime.

It is not a weakly prime, because it can be changed into another prime (122022497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61011228 + 61011229.

It is an arithmetic number, because the mean of its divisors is an integer number (61011229).

Almost surely, 2^122022457 is an apocalyptic number.

It is an amenable number.

122022457 is a deficient number, since it is larger than the sum of its proper divisors (1).

122022457 is an equidigital number, since it uses as much as digits as its factorization.

122022457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 122022457 is about 11046.3775510345. The cubic root of 122022457 is about 495.9979960572.

Adding to 122022457 its reverse (754220221), we get a palindrome (876242678).

The spelling of 122022457 in words is "one hundred twenty-two million, twenty-two thousand, four hundred fifty-seven".