1223821096 has 8 divisors (see below), whose sum is σ = 2294664570. Its totient is φ = 611910544.

The previous prime is 1223821063. The next prime is 1223821097. The reversal of 1223821096 is 6901283221.

It can be written as a sum of positive squares in only one way, i.e., 1203118596 + 20702500 = 34686^2 + 4550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1223821097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76488811 + ... + 76488826.

Almost surely, 2^1223821096 is an apocalyptic number.

It is an amenable number.

1223821096 is a deficient number, since it is larger than the sum of its proper divisors (1070843474).

1223821096 is a wasteful number, since it uses less digits than its factorization.

1223821096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152977643 (or 152977639 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1223821096 is about 34983.1544603971. The cubic root of 1223821096 is about 1069.6441288954.

The spelling of 1223821096 in words is "one billion, two hundred twenty-three million, eight hundred twenty-one thousand, ninety-six".