221020020110101 has 8 divisors (see below), whose sum is σ = 222484572510464. Its totient is φ = 219555478810800.

The previous prime is 221020020110083. The next prime is 221020020110161. The reversal of 221020020110101 is 101011020020122.

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

It is a cyclic number.

It is not a de Polignac number, because 221020020110101 - 2⁵ = 221020020110069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020020110161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39280756 + ... + 44553538.

It is an arithmetic number, because the mean of its divisors is an integer number (27810571563808).

Almost surely, 2^{221020020110101} is an apocalyptic number.

It is an amenable number.

221020020110101 is a deficient number, since it is larger than the sum of its proper divisors (1464552400363).

221020020110101 is a wasteful number, since it uses less digits than its factorization.

221020020110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550531.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221020020110101 its reverse (101011020020122), we get a palindrome (322031040130223).

The spelling of 221020020110101 in words is "two hundred twenty-one trillion, twenty billion, twenty million, one hundred ten thousand, one hundred one".