1223101660000 has 120 divisors (see below), whose sum is σ = 3282560825544. Its totient is φ = 444764160000.

The previous prime is 1223101659971. The next prime is 1223101660031. The reversal of 1223101660000 is 661013221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2559777 + ... + 2999776.

Almost surely, 2^{1223101660000} is an apocalyptic number.

1223101660000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223101660000 is an abundant number, since it is smaller than the sum of its proper divisors (2059459165544).

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

1223101660000 is an equidigital number, since it uses as much as digits as its factorization.

1223101660000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559594 (or 5559571 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1223101660000 its reverse (661013221), we get a palindrome (1223762673221).

The spelling of 1223101660000 in words is "one trillion, two hundred twenty-three billion, one hundred one million, six hundred sixty thousand".