1922331401 has 2 divisors, whose sum is σ = 1922331402. Its totient is φ = 1922331400.

The previous prime is 1922331373. The next prime is 1922331407. The reversal of 1922331401 is 1041332291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1471873225 + 450458176 = 38365^2 + 21224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1922331401 - 2²² = 1918137097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1922331407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961165700 + 961165701.

It is an arithmetic number, because the mean of its divisors is an integer number (961165701).

Almost surely, 2^1922331401 is an apocalyptic number.

It is an amenable number.

1922331401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922331401 is an equidigital number, since it uses as much as digits as its factorization.

1922331401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1922331401 is about 43844.3998818549. The cubic root of 1922331401 is about 1243.3958686874.

Adding to 1922331401 its reverse (1041332291), we get a palindrome (2963663692).

The spelling of 1922331401 in words is "one billion, nine hundred twenty-two million, three hundred thirty-one thousand, four hundred one".