20011100222331 has 24 divisors (see below), whose sum is σ = 29395769523120. Its totient is φ = 13114203076800.

The previous prime is 20011100222303. The next prime is 20011100222371. The reversal of 20011100222331 is 13322200111002.

20011100222331 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 110 + 0 + 222 + 331 = 666.

It is not a de Polignac number, because 20011100222331 - 2²⁵ = 20011066667899 is a prime.

It is a super-2 number, since 2×20011100222331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20011100222371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16612401 + ... + 17776221.

It is an arithmetic number, because the mean of its divisors is an integer number (1224823730130).

Almost surely, 2^{20011100222331} is an apocalyptic number.

20011100222331 is a deficient number, since it is larger than the sum of its proper divisors (9384669300789).

20011100222331 is a wasteful number, since it uses less digits than its factorization.

20011100222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196267 (or 1196264 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20011100222331 its reverse (13322200111002), we get a palindrome (33333300333333).

The spelling of 20011100222331 in words is "twenty trillion, eleven billion, one hundred million, two hundred twenty-two thousand, three hundred thirty-one".