1223202211240 has 16 divisors (see below), whose sum is σ = 2752204975380. Its totient is φ = 489280884480.

The previous prime is 1223202211223. The next prime is 1223202211241. The reversal of 1223202211240 is 421122023221.

It can be written as a sum of positive squares in 2 ways, for example, as 1215493020036 + 7709191204 = 1102494^2 + 87802^2 .

It is not an unprimeable number, because it can be changed into a prime (1223202211241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15290027601 + ... + 15290027680.

Almost surely, 2^{1223202211240} is an apocalyptic number.

1223202211240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223202211240 is an abundant number, since it is smaller than the sum of its proper divisors (1529002764140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223202211240 is a wasteful number, since it uses less digits than its factorization.

1223202211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30580055292 (or 30580055288 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1223202211240 its reverse (421122023221), we get a palindrome (1644324234461).

The spelling of 1223202211240 in words is "one trillion, two hundred twenty-three billion, two hundred two million, two hundred eleven thousand, two hundred forty".