221002111202022 has 24 divisors (see below), whose sum is σ = 480566564321376. Its totient is φ = 73401423213456.

The previous prime is 221002111202003. The next prime is 221002111202029. The reversal of 221002111202022 is 220202111200122.

It is a happy number.

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 = 221002111201986 and 221002111202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002111202029) 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 11 ways as a sum of consecutive naturals, for example, 22162260478 + ... + 22162270449.

It is an arithmetic number, because the mean of its divisors is an integer number (20023606846724).

Almost surely, 2^{221002111202022} is an apocalyptic number.

221002111202022 is an abundant number, since it is smaller than the sum of its proper divisors (259564453119354).

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

221002111202022 is a wasteful number, since it uses less digits than its factorization.

221002111202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44324531212 (or 44324531209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221002111202022 its reverse (220202111200122), we get a palindrome (441204222402144).

The spelling of 221002111202022 in words is "two hundred twenty-one trillion, two billion, one hundred eleven million, two hundred two thousand, twenty-two".