1000223113212 has 72 divisors (see below), whose sum is σ = 2777126002560. Its totient is φ = 302126885280.

The previous prime is 1000223113207. The next prime is 1000223113217. The reversal of 1000223113212 is 2123113220001.

1000223113212 is a `hidden beast` number, since 10 + 0 + 0 + 22 + 311 + 321 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1000223113207) and next prime (1000223113217).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000223113217) 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, 31773714 + ... + 31805177.

It is an arithmetic number, because the mean of its divisors is an integer number (38571194480).

Almost surely, 2^{1000223113212} is an apocalyptic number.

1000223113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000223113212 is an abundant number, since it is smaller than the sum of its proper divisors (1776902889348).

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

1000223113212 is a wasteful number, since it uses less digits than its factorization.

1000223113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63578943 (or 63578938 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1000223113212 its reverse (2123113220001), we get a palindrome (3123336333213).

The spelling of 1000223113212 in words is "one trillion, two hundred twenty-three million, one hundred thirteen thousand, two hundred twelve".