1011021220229 has 2 divisors, whose sum is σ = 1011021220230. Its totient is φ = 1011021220228.

The previous prime is 1011021220207. The next prime is 1011021220241. The reversal of 1011021220229 is 9220221201101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 867757456225 + 143263764004 = 931535^2 + 378502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011021220229 - 2¹² = 1011021216133 is a prime.

It is a super-2 number, since 2×1011021220229² (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 (1011021220259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505510610114 + 505510610115.

It is an arithmetic number, because the mean of its divisors is an integer number (505510610115).

Almost surely, 2^{1011021220229} is an apocalyptic number.

It is an amenable number.

1011021220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011021220229 is an equidigital number, since it uses as much as digits as its factorization.

1011021220229 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 1011021220229 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty thousand, two hundred twenty-nine".