20101212033 has 24 divisors (see below), whose sum is σ = 31249825920. Its totient is φ = 11459720160.

The previous prime is 20101212023. The next prime is 20101212059. The reversal of 20101212033 is 33021210102.

It is not a de Polignac number, because 20101212033 - 2⁶ = 20101211969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95278 + ... + 221991.

It is an arithmetic number, because the mean of its divisors is an integer number (1302076080).

Almost surely, 2^20101212033 is an apocalyptic number.

It is an amenable number.

20101212033 is a deficient number, since it is larger than the sum of its proper divisors (11148613887).

20101212033 is a wasteful number, since it uses less digits than its factorization.

20101212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317717 (or 317710 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20101212033 its reverse (33021210102), we get a palindrome (53122422135).

The spelling of 20101212033 in words is "twenty billion, one hundred one million, two hundred twelve thousand, thirty-three".