1220023233212 has 48 divisors (see below), whose sum is σ = 2472257948160. Its totient is φ = 516008750400.

The previous prime is 1220023233203. The next prime is 1220023233311. The reversal of 1220023233212 is 2123323200221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254912 + ... + 1582727.

It is an arithmetic number, because the mean of its divisors is an integer number (51505373920).

Almost surely, 2^{1220023233212} is an apocalyptic number.

It is an amenable number.

1220023233212 is an abundant number, since it is smaller than the sum of its proper divisors (1252234714948).

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

1220023233212 is a wasteful number, since it uses less digits than its factorization.

1220023233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837962 (or 1837960 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1220023233212 its reverse (2123323200221), we get a palindrome (3343346433433).

The spelling of 1220023233212 in words is "one trillion, two hundred twenty billion, twenty-three million, two hundred thirty-three thousand, two hundred twelve".