1011312220229 has 2 divisors, whose sum is σ = 1011312220230. Its totient is φ = 1011312220228.

The previous prime is 1011312220201. The next prime is 1011312220271. The reversal of 1011312220229 is 9220222131101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798074222500 + 213237997729 = 893350^2 + 461777^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011312220229 - 2¹⁶ = 1011312154693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011312220198 and 1011312220207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011312220129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505656110114 + 505656110115.

It is an arithmetic number, because the mean of its divisors is an integer number (505656110115).

Almost surely, 2^{1011312220229} is an apocalyptic number.

It is an amenable number.

1011312220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011312220229 is an equidigital number, since it uses as much as digits as its factorization.

1011312220229 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 26.

The spelling of 1011312220229 in words is "one trillion, eleven billion, three hundred twelve million, two hundred twenty thousand, two hundred twenty-nine".