10210201221 has 64 divisors (see below), whose sum is σ = 15409944576. Its totient is φ = 5960908800.

The previous prime is 10210201213. The next prime is 10210201297. The reversal of 10210201221 is 12210201201.

It is not a de Polignac number, because 10210201221 - 2³ = 10210201213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10210201197 and 10210201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210201121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30297165 + ... + 30297501.

It is an arithmetic number, because the mean of its divisors is an integer number (240780384).

Almost surely, 2^10210201221 is an apocalyptic number.

10210201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10210201221 is a deficient number, since it is larger than the sum of its proper divisors (5199743355).

10210201221 is a wasteful number, since it uses less digits than its factorization.

10210201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10210201221 its reverse (12210201201), we get a palindrome (22420402422).

The spelling of 10210201221 in words is "ten billion, two hundred ten million, two hundred one thousand, two hundred twenty-one".