1010222621 has 2 divisors, whose sum is σ = 1010222622. Its totient is φ = 1010222620.

The previous prime is 1010222567. The next prime is 1010222641. The reversal of 1010222621 is 1262220101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963792025 + 46430596 = 31045^2 + 6814^2 .

It is an emirp because it is prime and its reverse (1262220101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1010222621 - 2¹⁸ = 1009960477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010222621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010222641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505111310 + 505111311.

It is an arithmetic number, because the mean of its divisors is an integer number (505111311).

Almost surely, 2^1010222621 is an apocalyptic number.

It is an amenable number.

1010222621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010222621 is an equidigital number, since it uses as much as digits as its factorization.

1010222621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1010222621 is about 31783.9994494085. Note that the first 3 decimals coincide. The cubic root of 1010222621 is about 1003.3959944996.

Adding to 1010222621 its reverse (1262220101), we get a palindrome (2272442722).

It can be divided in two parts, 10102 and 22621, that added together give a palindrome (32723).

The spelling of 1010222621 in words is "one billion, ten million, two hundred twenty-two thousand, six hundred twenty-one".