20121012333 has 16 divisors (see below), whose sum is σ = 29814355200. Its totient is φ = 13411556640.

The previous prime is 20121012323. The next prime is 20121012419. The reversal of 20121012333 is 33321012102.

It is a de Polignac number, because none of the positive numbers 2^k-20121012333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121012323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88953 + ... + 219441.

It is an arithmetic number, because the mean of its divisors is an integer number (1863397200).

Almost surely, 2^20121012333 is an apocalyptic number.

It is an amenable number.

20121012333 is a deficient number, since it is larger than the sum of its proper divisors (9693342867).

20121012333 is a wasteful number, since it uses less digits than its factorization.

20121012333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136209 (or 136203 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20121012333 its reverse (33321012102), we get a palindrome (53442024435).

The spelling of 20121012333 in words is "twenty billion, one hundred twenty-one million, twelve thousand, three hundred thirty-three".