422122747 has 2 divisors, whose sum is σ = 422122748. Its totient is φ = 422122746.

The previous prime is 422122697. The next prime is 422122763. The reversal of 422122747 is 747221224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422122747 - 2¹⁹ = 421598459 is a prime.

It is a super-2 number, since 2×422122747² = 356375227069652018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422122777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211061373 + 211061374.

It is an arithmetic number, because the mean of its divisors is an integer number (211061374).

Almost surely, 2^422122747 is an apocalyptic number.

422122747 is a deficient number, since it is larger than the sum of its proper divisors (1).

422122747 is an equidigital number, since it uses as much as digits as its factorization.

422122747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 31.

The square root of 422122747 is about 20545.6259821890. The cubic root of 422122747 is about 750.1467843077.

The spelling of 422122747 in words is "four hundred twenty-two million, one hundred twenty-two thousand, seven hundred forty-seven".