1011220233212 has 24 divisors (see below), whose sum is σ = 2022461777280. Its totient is φ = 433375533360.

The previous prime is 1011220233169. The next prime is 1011220233229. The reversal of 1011220233212 is 2123320221101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4962839 + ... + 5162577.

It is an arithmetic number, because the mean of its divisors is an integer number (84269240720).

Almost surely, 2^{1011220233212} is an apocalyptic number.

It is an amenable number.

1011220233212 is an abundant number, since it is smaller than the sum of its proper divisors (1011241544068).

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

1011220233212 is a wasteful number, since it uses less digits than its factorization.

1011220233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380561 (or 380559 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1011220233212 its reverse (2123320221101), we get a palindrome (3134540454313).

The spelling of 1011220233212 in words is "one trillion, eleven billion, two hundred twenty million, two hundred thirty-three thousand, two hundred twelve".