220210012001221 has 8 divisors (see below), whose sum is σ = 240786480117888. Its totient is φ = 199726439904000.

The previous prime is 220210012001219. The next prime is 220210012001233. The reversal of 220210012001221 is 122100210012022.

It is a happy number.

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 220210012001221 - 2¹ = 220210012001219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220210012001195 and 220210012001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220210012001281) 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, 23223999900 + ... + 23224009381.

It is an arithmetic number, because the mean of its divisors is an integer number (30098310014736).

Almost surely, 2^{220210012001221} is an apocalyptic number.

It is an amenable number.

220210012001221 is a deficient number, since it is larger than the sum of its proper divisors (20576468116667).

220210012001221 is a wasteful number, since it uses less digits than its factorization.

220210012001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46448009723.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220210012001221 its reverse (122100210012022), we get a palindrome (342310222013243).

The spelling of 220210012001221 in words is "two hundred twenty trillion, two hundred ten billion, twelve million, one thousand, two hundred twenty-one".