1113023221212 has 24 divisors (see below), whose sum is σ = 2968061923456. Its totient is φ = 318006634608.

The previous prime is 1113023221201. The next prime is 1113023221223. The reversal of 1113023221212 is 2121223203111.

It is an interprime number because it is at equal distance from previous prime (1113023221201) and next prime (1113023221223).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 7 ways as a sum of consecutive naturals, for example, 6625138138 + ... + 6625138305.

Almost surely, 2^{1113023221212} is an apocalyptic number.

1113023221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1113023221212 is an abundant number, since it is smaller than the sum of its proper divisors (1855038702244).

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

1113023221212 is a wasteful number, since it uses less digits than its factorization.

1113023221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250276457 (or 13250276455 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1113023221212 its reverse (2121223203111), we get a palindrome (3234246424323).

The spelling of 1113023221212 in words is "one trillion, one hundred thirteen billion, twenty-three million, two hundred twenty-one thousand, two hundred twelve".