33211213412144 has 20 divisors (see below), whose sum is σ = 67144409725296. Its totient is φ = 15883623805632.

The previous prime is 33211213412137. The next prime is 33211213412147. The reversal of 33211213412144 is 44121431211233.

It is a super-2 number, since 2×33211213412144² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33211213412144.

It is not an unprimeable number, because it can be changed into a prime (33211213412147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45123930899 + ... + 45123931634.

Almost surely, 2^{33211213412144} is an apocalyptic number.

It is an amenable number.

33211213412144 is an abundant number, since it is smaller than the sum of its proper divisors (33933196313152).

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

33211213412144 is a wasteful number, since it uses less digits than its factorization.

33211213412144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90247862564 (or 90247862558 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

Adding to 33211213412144 its reverse (44121431211233), we get a palindrome (77332644623377).

The spelling of 33211213412144 in words is "thirty-three trillion, two hundred eleven billion, two hundred thirteen million, four hundred twelve thousand, one hundred forty-four".