20011001022133 has 4 divisors (see below), whose sum is σ = 21830182933248. Its totient is φ = 18191819111020.

The previous prime is 20011001022097. The next prime is 20011001022137. The reversal of 20011001022133 is 33122010011002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20011001022133 - 2³³ = 20002411087541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011001022137) 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, 909590955541 + ... + 909590955562.

It is an arithmetic number, because the mean of its divisors is an integer number (5457545733312).

Almost surely, 2^{20011001022133} is an apocalyptic number.

It is an amenable number.

20011001022133 is a deficient number, since it is larger than the sum of its proper divisors (1819181911115).

20011001022133 is a wasteful number, since it uses less digits than its factorization.

20011001022133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819181911114.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20011001022133 its reverse (33122010011002), we get a palindrome (53133011033135).

The spelling of 20011001022133 in words is "twenty trillion, eleven billion, one million, twenty-two thousand, one hundred thirty-three".