1023220229 has 2 divisors, whose sum is σ = 1023220230. Its totient is φ = 1023220228.

The previous prime is 1023220201. The next prime is 1023220241. The reversal of 1023220229 is 9220223201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516880225 + 506340004 = 22735^2 + 22502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023220229 - 2²⁴ = 1006443013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023220529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511610114 + 511610115.

It is an arithmetic number, because the mean of its divisors is an integer number (511610115).

Almost surely, 2^1023220229 is an apocalyptic number.

It is an amenable number.

1023220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023220229 is an equidigital number, since it uses as much as digits as its factorization.

1023220229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1023220229 is about 31987.8137577422. The cubic root of 1023220229 is about 1007.6809286192.

The spelling of 1023220229 in words is "one billion, twenty-three million, two hundred twenty thousand, two hundred twenty-nine".