221000211002021 has 8 divisors (see below), whose sum is σ = 241123670889888. Its totient is φ = 200882173050000.

The previous prime is 221000211002017. The next prime is 221000211002059. The reversal of 221000211002021 is 120200112000122.

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 221000211002021 - 2² = 221000211002017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221000211001987 and 221000211002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000211002821) 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, 1355398730 + ... + 1355561771.

It is an arithmetic number, because the mean of its divisors is an integer number (30140458861236).

Almost surely, 2^{221000211002021} is an apocalyptic number.

It is an amenable number.

221000211002021 is a deficient number, since it is larger than the sum of its proper divisors (20123459887867).

221000211002021 is a wasteful number, since it uses less digits than its factorization.

221000211002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710967923.

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

Adding to 221000211002021 its reverse (120200112000122), we get a palindrome (341200323002143).

The spelling of 221000211002021 in words is "two hundred twenty-one trillion, two hundred eleven million, two thousand, twenty-one".