10202212221021 has 96 divisors (see below), whose sum is σ = 15415390298880. Its totient is φ = 6496158569472.

The previous prime is 10202212221007. The next prime is 10202212221041. The reversal of 10202212221021 is 12012221220201.

It is a happy number.

10202212221021 is a `hidden beast` number, since 10 + 202 + 212 + 221 + 0 + 21 = 666.

It is not a de Polignac number, because 10202212221021 - 2⁹ = 10202212220509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202212220985 and 10202212221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202212221041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6270566010 + ... + 6270567636.

It is an arithmetic number, because the mean of its divisors is an integer number (160576982280).

Almost surely, 2^{10202212221021} is an apocalyptic number.

It is an amenable number.

10202212221021 is a deficient number, since it is larger than the sum of its proper divisors (5213178077859).

10202212221021 is a wasteful number, since it uses less digits than its factorization.

10202212221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3152 counting only the distinct ones).

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

Adding to 10202212221021 its reverse (12012221220201), we get a palindrome (22214433441222).

The spelling of 10202212221021 in words is "ten trillion, two hundred two billion, two hundred twelve million, two hundred twenty-one thousand, twenty-one".