202201010212221 has 48 divisors (see below), whose sum is σ = 296910368419392. Its totient is φ = 132584221440000.

The previous prime is 202201010212211. The next prime is 202201010212249. The reversal of 202201010212221 is 122212010102202.

It is a happy number.

202201010212221 is a `hidden beast` number, since 2 + 0 + 220 + 1 + 0 + 10 + 212 + 221 = 666.

It is not a de Polignac number, because 202201010212221 - 2¹⁹ = 202201009687933 is a prime.

It is a super-2 number, since 2×202201010212221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202201010212194 and 202201010212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201010212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312753946 + ... + 313399796.

It is an arithmetic number, because the mean of its divisors is an integer number (6185632675404).

Almost surely, 2^{202201010212221} is an apocalyptic number.

It is an amenable number.

202201010212221 is a deficient number, since it is larger than the sum of its proper divisors (94709358207171).

202201010212221 is a wasteful number, since it uses less digits than its factorization.

202201010212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648234 (or 648231 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202201010212221 its reverse (122212010102202), we get a palindrome (324413020314423).

The spelling of 202201010212221 in words is "two hundred two trillion, two hundred one billion, ten million, two hundred twelve thousand, two hundred twenty-one".