220021032101 has 8 divisors (see below), whose sum is σ = 250883711064. Its totient is φ = 191149493760.

The previous prime is 220021032047. The next prime is 220021032109. The reversal of 220021032101 is 101230120022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17767557025 + 202253475076 = 133295^2 + 449726^2 .

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 220021032101 - 2¹⁸ = 220020769957 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 (220021032109) 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, 497784920 + ... + 497785361.

It is an arithmetic number, because the mean of its divisors is an integer number (31360463883).

Almost surely, 2^220021032101 is an apocalyptic number.

It is an amenable number.

220021032101 is a deficient number, since it is larger than the sum of its proper divisors (30862678963).

220021032101 is a wasteful number, since it uses less digits than its factorization.

220021032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995570311.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 220021032101 its reverse (101230120022), we get a palindrome (321251152123).

The spelling of 220021032101 in words is "two hundred twenty billion, twenty-one million, thirty-two thousand, one hundred one".