2211231133212 has 24 divisors (see below), whose sum is σ = 5159622720000. Its totient is φ = 737065128816.

The previous prime is 2211231133207. The next prime is 2211231133229. The reversal of 2211231133212 is 2123311321122.

It is a super-3 number, since 3×2211231133212³ (a number of 38 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 699462 + ... + 2216237.

It is an arithmetic number, because the mean of its divisors is an integer number (214984280000).

Almost surely, 2^{2211231133212} is an apocalyptic number.

It is an amenable number.

2211231133212 is an abundant number, since it is smaller than the sum of its proper divisors (2948391586788).

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

2211231133212 is a wasteful number, since it uses less digits than its factorization.

2211231133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978905 (or 2978903 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 2211231133212 its reverse (2123311321122), we get a palindrome (4334542454334).

The spelling of 2211231133212 in words is "two trillion, two hundred eleven billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred twelve".