20221020220111 has 16 divisors (see below), whose sum is σ = 20776187751264. Its totient is φ = 19666310160384.

The previous prime is 20221020220081. The next prime is 20221020220151. The reversal of 20221020220111 is 11102202012202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20221020220111 - 2⁴³ = 11424927197903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221020220151) 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, 1256190015 + ... + 1256206111.

It is an arithmetic number, because the mean of its divisors is an integer number (1298511734454).

Almost surely, 2^{20221020220111} is an apocalyptic number.

20221020220111 is a deficient number, since it is larger than the sum of its proper divisors (555167531153).

20221020220111 is a wasteful number, since it uses less digits than its factorization.

20221020220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28170.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20221020220111 its reverse (11102202012202), we get a palindrome (31323222232313).

The spelling of 20221020220111 in words is "twenty trillion, two hundred twenty-one billion, twenty million, two hundred twenty thousand, one hundred eleven".