220001020111021 has 8 divisors (see below), whose sum is σ = 222058369348704. Its totient is φ = 217943694298320.

The previous prime is 220001020111007. The next prime is 220001020111027. The reversal of 220001020111021 is 120111020100022.

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 220001020111021 - 2³³ = 219992430176429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220001020110992 and 220001020111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001020111027) 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, 13306866 + ... + 24840988.

It is an arithmetic number, because the mean of its divisors is an integer number (27757296168588).

Almost surely, 2^{220001020111021} is an apocalyptic number.

It is an amenable number.

220001020111021 is a deficient number, since it is larger than the sum of its proper divisors (2057349237683).

220001020111021 is a wasteful number, since it uses less digits than its factorization.

220001020111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11712491.

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

Adding to 220001020111021 its reverse (120111020100022), we get a palindrome (340112040211043).

The spelling of 220001020111021 in words is "two hundred twenty trillion, one billion, twenty million, one hundred eleven thousand, twenty-one".