202220111111111 has 4 divisors (see below), whose sum is σ = 208743340501824. Its totient is φ = 195696881720400.

The previous prime is 202220111111107. The next prime is 202220111111141. The reversal of 202220111111111 is 111111111022202.

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 202220111111111 - 2² = 202220111111107 is a prime.

It is a Duffinian number.

202220111111111 is a modest number, since divided by 11111111 gives 2022201 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 202220111111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220111111101) 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, 3261614695310 + ... + 3261614695371.

It is an arithmetic number, because the mean of its divisors is an integer number (52185835125456).

Almost surely, 2^{202220111111111} is an apocalyptic number.

202220111111111 is a deficient number, since it is larger than the sum of its proper divisors (6523229390713).

202220111111111 is an equidigital number, since it uses as much as digits as its factorization.

202220111111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523229390712.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 202220111111111 its reverse (111111111022202), we get a palindrome (313331222133313).

The spelling of 202220111111111 in words is "two hundred two trillion, two hundred twenty billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".