221101020019 has 16 divisors (see below), whose sum is σ = 241950111840. Its totient is φ = 200377416960.

The previous prime is 221101019989. The next prime is 221101020061. The reversal of 221101020019 is 910020101122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221101020019 - 2⁷ = 221101019891 is a prime.

It is a super-2 number, since 2×221101020019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221101019978 and 221101020005.

It is not an unprimeable number, because it can be changed into a prime (221101020089) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7169517 + ... + 7200289.

It is an arithmetic number, because the mean of its divisors is an integer number (15121881990).

Almost surely, 2^221101020019 is an apocalyptic number.

221101020019 is a deficient number, since it is larger than the sum of its proper divisors (20849091821).

221101020019 is a wasteful number, since it uses less digits than its factorization.

221101020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32790.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 221101020019 in words is "two hundred twenty-one billion, one hundred one million, twenty thousand, nineteen".