20011322211 has 16 divisors (see below), whose sum is σ = 27490627584. Its totient is φ = 12941473664.

The previous prime is 20011322209. The next prime is 20011322231. The reversal of 20011322211 is 11222311002.

It is a cyclic number.

It is not a de Polignac number, because 20011322211 - 2¹ = 20011322209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011322231) 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, 612051 + ... + 643916.

It is an arithmetic number, because the mean of its divisors is an integer number (1718164224).

Almost surely, 2^20011322211 is an apocalyptic number.

20011322211 is a deficient number, since it is larger than the sum of its proper divisors (7479305373).

20011322211 is a wasteful number, since it uses less digits than its factorization.

20011322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256130.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20011322211 its reverse (11222311002), we get a palindrome (31233633213).

The spelling of 20011322211 in words is "twenty billion, eleven million, three hundred twenty-two thousand, two hundred eleven".