221222122201101 has 8 divisors (see below), whose sum is σ = 337100376687424. Its totient is φ = 126412641257760.

The previous prime is 221222122201061. The next prime is 221222122201133. The reversal of 221222122201101 is 101102221222122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221222122201101 - 2⁶ = 221222122201037 is a prime.

It is a super-2 number, since 2×221222122201101² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10534386771481 = 221222122201101 / (2 + 2 + 1 + 2 + 2 + 2 + 1 + 2 + 2 + 2 + 0 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222122201181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5267193385720 + ... + 5267193385761.

It is an arithmetic number, because the mean of its divisors is an integer number (42137547085928).

Almost surely, 2^{221222122201101} is an apocalyptic number.

221222122201101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221222122201101 is a deficient number, since it is larger than the sum of its proper divisors (115878254486323).

221222122201101 is a wasteful number, since it uses less digits than its factorization.

221222122201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534386771491.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221222122201101 its reverse (101102221222122), we get a palindrome (322324343423223).

The spelling of 221222122201101 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, one hundred one".