1022212049 has 2 divisors, whose sum is σ = 1022212050. Its totient is φ = 1022212048.

The previous prime is 1022212033. The next prime is 1022212117. The reversal of 1022212049 is 9402122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969388225 + 52823824 = 31135^2 + 7268^2 .

It is an emirp because it is prime and its reverse (9402122201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022212049 - 2⁴ = 1022212033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022212019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511106024 + 511106025.

It is an arithmetic number, because the mean of its divisors is an integer number (511106025).

Almost surely, 2^1022212049 is an apocalyptic number.

It is an amenable number.

1022212049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022212049 is an equidigital number, since it uses as much as digits as its factorization.

1022212049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1022212049 is about 31972.0510602620. The cubic root of 1022212049 is about 1007.3498634922.

The spelling of 1022212049 in words is "one billion, twenty-two million, two hundred twelve thousand, forty-nine".