20012211033 has 32 divisors (see below), whose sum is σ = 27452006400. Its totient is φ = 12963951936.

The previous prime is 20012211029. The next prime is 20012211041. The reversal of 20012211033 is 33011221002.

It is not a de Polignac number, because 20012211033 - 2² = 20012211029 is a prime.

It is a super-4 number, since 4×20012211033⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20012211533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4074183 + ... + 4079091.

It is an arithmetic number, because the mean of its divisors is an integer number (857875200).

Almost surely, 2^20012211033 is an apocalyptic number.

It is an amenable number.

20012211033 is a deficient number, since it is larger than the sum of its proper divisors (7439795367).

20012211033 is a wasteful number, since it uses less digits than its factorization.

20012211033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261.

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

Adding to 20012211033 its reverse (33011221002), we get a palindrome (53023432035).

The spelling of 20012211033 in words is "twenty billion, twelve million, two hundred eleven thousand, thirty-three".