202221101201221 has 32 divisors (see below), whose sum is σ = 208225990103040. Its totient is φ = 196313761740096.

The previous prime is 202221101201153. The next prime is 202221101201233. The reversal of 202221101201221 is 122102101122202.

It is not a de Polignac number, because 202221101201221 - 2¹³ = 202221101193029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221101201291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8515636470 + ... + 8515660216.

It is an arithmetic number, because the mean of its divisors is an integer number (6507062190720).

Almost surely, 2^{202221101201221} is an apocalyptic number.

It is an amenable number.

202221101201221 is a deficient number, since it is larger than the sum of its proper divisors (6004888901819).

202221101201221 is a wasteful number, since it uses less digits than its factorization.

202221101201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26833.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202221101201221 its reverse (122102101122202), we get a palindrome (324323202323423).

The spelling of 202221101201221 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred one million, two hundred one thousand, two hundred twenty-one".