20111101221022 has 32 divisors (see below), whose sum is σ = 35004097704960. Its totient is φ = 8487160529760.

The previous prime is 20111101220993. The next prime is 20111101221023. The reversal of 20111101221022 is 22012210111102.

It is a junction number, because it is equal to n+sod(n) for n = 20111101220987 and 20111101221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111101221023) 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, 1631622 + ... + 6548617.

It is an arithmetic number, because the mean of its divisors is an integer number (1093878053280).

Almost surely, 2^{20111101221022} is an apocalyptic number.

20111101221022 is a deficient number, since it is larger than the sum of its proper divisors (14892996483938).

20111101221022 is a wasteful number, since it uses less digits than its factorization.

20111101221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182936.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20111101221022 its reverse (22012210111102), we get a palindrome (42123311332124).

The spelling of 20111101221022 in words is "twenty trillion, one hundred eleven billion, one hundred one million, two hundred twenty-one thousand, twenty-two".