1223290887000 has 512 divisors, whose sum is σ = 4705237555200. Its totient is φ = 257672448000.

The previous prime is 1223290886999. The next prime is 1223290887001. The reversal of 1223290887000 is 7880923221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1223290886999) and next prime (1223290887001).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223290887001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 180449611 + ... + 180456389.

It is an arithmetic number, because the mean of its divisors is an integer number (9189917100).

Almost surely, 2^{1223290887000} is an apocalyptic number.

1223290887000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223290887000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352618777600).

1223290887000 is an abundant number, since it is smaller than the sum of its proper divisors (3481946668200).

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

1223290887000 is a wasteful number, since it uses less digits than its factorization.

1223290887000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484 (or 7470 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 1223290887000 in words is "one trillion, two hundred twenty-three billion, two hundred ninety million, eight hundred eighty-seven thousand".