2221110020021 has 8 divisors (see below), whose sum is σ = 2248031180640. Its totient is φ = 2194192688112.

The previous prime is 2221110019967. The next prime is 2221110020027. The reversal of 2221110020021 is 1200200111222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221110020021 is a prime.

It is a super-3 number, since 3×2221110020021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221110019978 and 2221110020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221110020027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218795 + ... + 2118983.

It is an arithmetic number, because the mean of its divisors is an integer number (281003897580).

Almost surely, 2^{2221110020021} is an apocalyptic number.

It is an amenable number.

2221110020021 is a deficient number, since it is larger than the sum of its proper divisors (26921160619).

2221110020021 is a wasteful number, since it uses less digits than its factorization.

2221110020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914355.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221110020021 its reverse (1200200111222), we get a palindrome (3421310131243).

The spelling of 2221110020021 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, twenty thousand, twenty-one".