220220012101 has 4 divisors (see below), whose sum is σ = 220221463852. Its totient is φ = 220218560352.

The previous prime is 220220012083. The next prime is 220220012119. The reversal of 220220012101 is 101210022022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101210022022 = 2 ⋅50605011011.

It is an interprime number because it is at equal distance from previous prime (220220012083) and next prime (220220012119).

It can be written as a sum of positive squares in 2 ways, for example, as 77601244900 + 142618767201 = 278570^2 + 377649^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220012101 - 2⁹ = 220220011589 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 (220220012801) 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 3 ways as a sum of consecutive naturals, for example, 467736 + ... + 811921.

It is an arithmetic number, because the mean of its divisors is an integer number (55055365963).

Almost surely, 2^220220012101 is an apocalyptic number.

It is an amenable number.

220220012101 is a deficient number, since it is larger than the sum of its proper divisors (1451751).

220220012101 is a wasteful number, since it uses less digits than its factorization.

220220012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451750.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220220012101 its reverse (101210022022), we get a palindrome (321430034123).

The spelling of 220220012101 in words is "two hundred twenty billion, two hundred twenty million, twelve thousand, one hundred one".