1023101221 has 2 divisors, whose sum is σ = 1023101222. Its totient is φ = 1023101220.

The previous prime is 1023101207. The next prime is 1023101263. The reversal of 1023101221 is 1221013201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561453025 + 461648196 = 23695^2 + 21486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023101221 - 2²⁷ = 888883493 is a prime.

It is a super-2 number, since 2×1023101221² = 2093472216823381682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023101621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511550610 + 511550611.

It is an arithmetic number, because the mean of its divisors is an integer number (511550611).

Almost surely, 2^1023101221 is an apocalyptic number.

It is an amenable number.

1023101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023101221 is an equidigital number, since it uses as much as digits as its factorization.

1023101221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1023101221 is about 31985.9534952454. The cubic root of 1023101221 is about 1007.6418602159.

Adding to 1023101221 its reverse (1221013201), we get a palindrome (2244114422).

The spelling of 1023101221 in words is "one billion, twenty-three million, one hundred one thousand, two hundred twenty-one".