210022220011 has 4 divisors (see below), whose sum is σ = 215144713224. Its totient is φ = 204899726800.

The previous prime is 210022219999. The next prime is 210022220069. The reversal of 210022220011 is 110022220012.

It is a happy number.

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 210022220011 - 2⁹ = 210022219499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022219973 and 210022220000.

It is not an unprimeable number, because it can be changed into a prime (210022220071) 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, 2561246545 + ... + 2561246626.

It is an arithmetic number, because the mean of its divisors is an integer number (53786178306).

Almost surely, 2^210022220011 is an apocalyptic number.

210022220011 is a deficient number, since it is larger than the sum of its proper divisors (5122493213).

210022220011 is an equidigital number, since it uses as much as digits as its factorization.

210022220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122493212.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210022220011 its reverse (110022220012), we get a palindrome (320044440023).

Subtracting from 210022220011 its reverse (110022220012), we obtain a palindrome (99999999999).

The spelling of 210022220011 in words is "two hundred ten billion, twenty-two million, two hundred twenty thousand, eleven".