221101221110022 has 224 divisors, whose sum is σ = 560012400635904. Its totient is φ = 64832235148800.

The previous prime is 221101221109969. The next prime is 221101221110059. The reversal of 221101221110022 is 220011122101122.

221101221110022 is a `hidden beast` number, since 221 + 101 + 221 + 1 + 100 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221101221109977 and 221101221110004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 6571184803 + ... + 6571218449.

Almost surely, 2^{221101221110022} is an apocalyptic number.

221101221110022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 221101221110022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280006200317952).

221101221110022 is an abundant number, since it is smaller than the sum of its proper divisors (338911179525882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221101221110022 is a wasteful number, since it uses less digits than its factorization.

221101221110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46926 (or 46911 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221101221110022 its reverse (220011122101122), we get a palindrome (441112343211144).

The spelling of 221101221110022 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twenty-one million, one hundred ten thousand, twenty-two".