1022121941 has 2 divisors, whose sum is σ = 1022121942. Its totient is φ = 1022121940.

The previous prime is 1022121913. The next prime is 1022121977. The reversal of 1022121941 is 1491212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020546916 + 1575025 = 31946^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022121941 - 2¹⁰ = 1022120917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022021941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511060970 + 511060971.

It is an arithmetic number, because the mean of its divisors is an integer number (511060971).

Almost surely, 2^1022121941 is an apocalyptic number.

It is an amenable number.

1022121941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022121941 is an equidigital number, since it uses as much as digits as its factorization.

1022121941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1022121941 is about 31970.6418609324. The cubic root of 1022121941 is about 1007.3202633230.

The spelling of 1022121941 in words is "one billion, twenty-two million, one hundred twenty-one thousand, nine hundred forty-one".