1011220223 has 8 divisors (see below), whose sum is σ = 1146322800. Its totient is φ = 884305728.

The previous prime is 1011220193. The next prime is 1011220229. The reversal of 1011220223 is 3220221101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011220223 - 2⁸ = 1011219967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011220198 and 1011220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011220229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2046758 + ... + 2047251.

It is an arithmetic number, because the mean of its divisors is an integer number (143290350).

Almost surely, 2^1011220223 is an apocalyptic number.

1011220223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011220223 is a deficient number, since it is larger than the sum of its proper divisors (135102577).

1011220223 is a wasteful number, since it uses less digits than its factorization.

1011220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094041.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1011220223 is about 31799.6890393601. The cubic root of 1011220223 is about 1003.7261727250.

Adding to 1011220223 its reverse (3220221101), we get a palindrome (4231441324).

It can be divided in two parts, 10112 and 20223, that multiplied together give a triangular number (204494976 = T₂₀₂₂₃).

The spelling of 1011220223 in words is "one billion, eleven million, two hundred twenty thousand, two hundred twenty-three".