20121101033 has 16 divisors (see below), whose sum is σ = 22447993536. Its totient is φ = 17881597440.

The previous prime is 20121101027. The next prime is 20121101057. The reversal of 20121101033 is 33010112102.

It is a cyclic number.

It is not a de Polignac number, because 20121101033 - 2¹² = 20121096937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121100999 and 20121101017.

It is not an unprimeable number, because it can be changed into a prime (20121104033) 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, 20135 + ... + 201612.

It is an arithmetic number, because the mean of its divisors is an integer number (1402999596).

Almost surely, 2^20121101033 is an apocalyptic number.

It is an amenable number.

20121101033 is a deficient number, since it is larger than the sum of its proper divisors (2326892503).

20121101033 is a wasteful number, since it uses less digits than its factorization.

20121101033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221944.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20121101033 its reverse (33010112102), we get a palindrome (53131213135).

The spelling of 20121101033 in words is "twenty billion, one hundred twenty-one million, one hundred one thousand, thirty-three".