20011022213 has 16 divisors (see below), whose sum is σ = 24642393216. Its totient is φ = 15824255040.

The previous prime is 20011022197. The next prime is 20011022237. The reversal of 20011022213 is 31222011002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20011022213 - 2⁴ = 20011022197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011022293) 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, 110270 + ... + 228432.

It is an arithmetic number, because the mean of its divisors is an integer number (1540149576).

Almost surely, 2^20011022213 is an apocalyptic number.

It is an amenable number.

20011022213 is a deficient number, since it is larger than the sum of its proper divisors (4631371003).

20011022213 is a wasteful number, since it uses less digits than its factorization.

20011022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120044.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20011022213 its reverse (31222011002), we get a palindrome (51233033215).

The spelling of 20011022213 in words is "twenty billion, eleven million, twenty-two thousand, two hundred thirteen".