221020102020201 has 8 divisors (see below), whose sum is σ = 321483784756704. Its totient is φ = 133951576981920.

The previous prime is 221020102020181. The next prime is 221020102020217. The reversal of 221020102020201 is 102020201020122.

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

It is not a de Polignac number, because 221020102020201 - 2¹³ = 221020102012009 is a prime.

It is a super-2 number, since 2×221020102020201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221020102020241) 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, 3348789424516 + ... + 3348789424581.

It is an arithmetic number, because the mean of its divisors is an integer number (40185473094588).

Almost surely, 2^{221020102020201} is an apocalyptic number.

It is an amenable number.

221020102020201 is a deficient number, since it is larger than the sum of its proper divisors (100463682736503).

221020102020201 is a wasteful number, since it uses less digits than its factorization.

221020102020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697578849111.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221020102020201 its reverse (102020201020122), we get a palindrome (323040303040323).

The spelling of 221020102020201 in words is "two hundred twenty-one trillion, twenty billion, one hundred two million, twenty thousand, two hundred one".