20021201134 has 32 divisors (see below), whose sum is σ = 33904332000. Its totient is φ = 8783456640.

The previous prime is 20021201119. The next prime is 20021201159. The reversal of 20021201134 is 43110212002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2648392 + ... + 2655940.

It is an arithmetic number, because the mean of its divisors is an integer number (1059510375).

Almost surely, 2^20021201134 is an apocalyptic number.

20021201134 is a deficient number, since it is larger than the sum of its proper divisors (13883130866).

20021201134 is a wasteful number, since it uses less digits than its factorization.

20021201134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20021201134 its reverse (43110212002), we get a palindrome (63131413136).

The spelling of 20021201134 in words is "twenty billion, twenty-one million, two hundred one thousand, one hundred thirty-four".