1223121030032 has 80 divisors (see below), whose sum is σ = 2661158544000. Its totient is φ = 539704581120.

The previous prime is 1223121030023. The next prime is 1223121030059. The reversal of 1223121030032 is 2300301213221.

It is a junction number, because it is equal to n+sod(n) for n = 1223121029986 and 1223121030013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644844 + ... + 3072692.

It is an arithmetic number, because the mean of its divisors is an integer number (33264481800).

Almost surely, 2^{1223121030032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223121030032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330579272000).

1223121030032 is an abundant number, since it is smaller than the sum of its proper divisors (1438037513968).

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

1223121030032 is a wasteful number, since it uses less digits than its factorization.

1223121030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428344 (or 428338 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1223121030032 its reverse (2300301213221), we get a palindrome (3523422243253).

The spelling of 1223121030032 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-one million, thirty thousand, thirty-two".