1011223412 has 12 divisors (see below), whose sum is σ = 1771335300. Its totient is φ = 505127616.

The previous prime is 1011223387. The next prime is 1011223469. The reversal of 1011223412 is 2143221101.

It can be written as a sum of positive squares in 2 ways, for example, as 514200976 + 497022436 = 22676^2 + 22294^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116303 + ... + 124694.

It is an arithmetic number, because the mean of its divisors is an integer number (147611275).

Almost surely, 2^1011223412 is an apocalyptic number.

It is an amenable number.

1011223412 is a deficient number, since it is larger than the sum of its proper divisors (760111888).

1011223412 is a wasteful number, since it uses less digits than its factorization.

1011223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242050 (or 242048 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1011223412 is about 31799.7391813203. The cubic root of 1011223412 is about 1003.7272278461.

Adding to 1011223412 its reverse (2143221101), we get a palindrome (3154444513).

The spelling of 1011223412 in words is "one billion, eleven million, two hundred twenty-three thousand, four hundred twelve".