1021120201229 has 2 divisors, whose sum is σ = 1021120201230. Its totient is φ = 1021120201228.

The previous prime is 1021120201159. The next prime is 1021120201313. The reversal of 1021120201229 is 9221020211201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748437805129 + 272682396100 = 865123^2 + 522190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021120201229 - 2⁸ = 1021120200973 is a prime.

It is a super-2 number, since 2×1021120201229² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021120201429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510560100614 + 510560100615.

It is an arithmetic number, because the mean of its divisors is an integer number (510560100615).

Almost surely, 2^{1021120201229} is an apocalyptic number.

It is an amenable number.

1021120201229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021120201229 is an equidigital number, since it uses as much as digits as its factorization.

1021120201229 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 spelling of 1021120201229 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred one thousand, two hundred twenty-nine".