20110221022 has 4 divisors (see below), whose sum is σ = 30165331536. Its totient is φ = 10055110510.

The previous prime is 20110220993. The next prime is 20110221023. The reversal of 20110221022 is 22012201102.

It is a happy number.

20110221022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 20110220993 and 20110221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027555254 + ... + 5027555257.

It is an arithmetic number, because the mean of its divisors is an integer number (7541332884).

Almost surely, 2^20110221022 is an apocalyptic number.

20110221022 is a deficient number, since it is larger than the sum of its proper divisors (10055110514).

20110221022 is a wasteful number, since it uses less digits than its factorization.

20110221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055110513.

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

Adding to 20110221022 its reverse (22012201102), we get a palindrome (42122422124).

The spelling of 20110221022 in words is "twenty billion, one hundred ten million, two hundred twenty-one thousand, twenty-two".