221020100220022 has 8 divisors (see below), whose sum is σ = 331871582001672. Its totient is φ = 110396239552800.

The previous prime is 221020100219993. The next prime is 221020100220133. The reversal of 221020100220022 is 220022001020122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221020100219978 and 221020100220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56905276179 + ... + 56905280062.

It is an arithmetic number, because the mean of its divisors is an integer number (41483947750209).

Almost surely, 2^{221020100220022} is an apocalyptic number.

221020100220022 is a deficient number, since it is larger than the sum of its proper divisors (110851481781650).

221020100220022 is a wasteful number, since it uses less digits than its factorization.

221020100220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113810557214.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221020100220022 its reverse (220022001020122), we get a palindrome (441042101240144).

The spelling of 221020100220022 in words is "two hundred twenty-one trillion, twenty billion, one hundred million, two hundred twenty thousand, twenty-two".