221020101212022 has 48 divisors (see below), whose sum is σ = 571082994443520. Its totient is φ = 60403009026096.

The previous prime is 221020101212017. The next prime is 221020101212033. The reversal of 221020101212022 is 220212101020122.

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 = 221020101211986 and 221020101212004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38133209872 + ... + 38133215667.

It is an arithmetic number, because the mean of its divisors is an integer number (11897562384240).

Almost surely, 2^{221020101212022} is an apocalyptic number.

221020101212022 is an abundant number, since it is smaller than the sum of its proper divisors (350062893231498).

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

221020101212022 is a wasteful number, since it uses less digits than its factorization.

221020101212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76266425577 (or 76266425574 counting only the distinct ones).

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

Adding to 221020101212022 its reverse (220212101020122), we get a palindrome (441232202232144).

The spelling of 221020101212022 in words is "two hundred twenty-one trillion, twenty billion, one hundred one million, two hundred twelve thousand, twenty-two".