20011332113212 has 12 divisors (see below), whose sum is σ = 38203452216216. Its totient is φ = 9096060051440.

The previous prime is 20011332113167. The next prime is 20011332113237. The reversal of 20011332113212 is 21231123311002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227401501243 + ... + 227401501330.

It is an arithmetic number, because the mean of its divisors is an integer number (3183621018018).

Almost surely, 2^{20011332113212} is an apocalyptic number.

20011332113212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20011332113212 is a deficient number, since it is larger than the sum of its proper divisors (18192120103004).

20011332113212 is a wasteful number, since it uses less digits than its factorization.

20011332113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454803002588 (or 454803002586 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20011332113212 its reverse (21231123311002), we get a palindrome (41242455424214).

The spelling of 20011332113212 in words is "twenty trillion, eleven billion, three hundred thirty-two million, one hundred thirteen thousand, two hundred twelve".