20022202211 has 4 divisors (see below), whose sum is σ = 21842402424. Its totient is φ = 18202002000.

The previous prime is 20022202201. The next prime is 20022202267. The reversal of 20022202211 is 11220222002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20022202211 - 2¹⁸ = 20021940067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022202201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910100090 + ... + 910100111.

It is an arithmetic number, because the mean of its divisors is an integer number (5460600606).

Almost surely, 2^20022202211 is an apocalyptic number.

20022202211 is a deficient number, since it is larger than the sum of its proper divisors (1820200213).

20022202211 is a wasteful number, since it uses less digits than its factorization.

20022202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820200212.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20022202211 its reverse (11220222002), we get a palindrome (31242424213).

The spelling of 20022202211 in words is "twenty billion, twenty-two million, two hundred two thousand, two hundred eleven".