1220002203231 has 24 divisors (see below), whose sum is σ = 2022398576640. Its totient is φ = 694227186576.

The previous prime is 1220002203179. The next prime is 1220002203271. The reversal of 1220002203231 is 1323022000221.

1220002203231 is a `hidden beast` number, since 12 + 200 + 0 + 220 + 3 + 231 = 666.

It is not a de Polignac number, because 1220002203231 - 2⁷ = 1220002203103 is a prime.

It is a super-2 number, since 2×1220002203231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220002203271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40497735 + ... + 40527848.

It is an arithmetic number, because the mean of its divisors is an integer number (84266607360).

Almost surely, 2^{1220002203231} is an apocalyptic number.

1220002203231 is a deficient number, since it is larger than the sum of its proper divisors (802396373409).

1220002203231 is a wasteful number, since it uses less digits than its factorization.

1220002203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81025835 (or 81025832 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1220002203231 its reverse (1323022000221), we get a palindrome (2543024203452).

The spelling of 1220002203231 in words is "one trillion, two hundred twenty billion, two million, two hundred three thousand, two hundred thirty-one".