202201222221021 has 8 divisors (see below), whose sum is σ = 285460549017984. Its totient is φ = 126871355119040.

The previous prime is 202201222220993. The next prime is 202201222221121. The reversal of 202201222221021 is 120122222102202.

202201222221021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 202201222221021 - 2⁹ = 202201222220509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201222221121) 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, 1982364923685 + ... + 1982364923786.

It is an arithmetic number, because the mean of its divisors is an integer number (35682568627248).

Almost surely, 2^{202201222221021} is an apocalyptic number.

It is an amenable number.

202201222221021 is a deficient number, since it is larger than the sum of its proper divisors (83259326796963).

202201222221021 is a wasteful number, since it uses less digits than its factorization.

202201222221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964729847491.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202201222221021 its reverse (120122222102202), we get a palindrome (322323444323223).

The spelling of 202201222221021 in words is "two hundred two trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-one".