10212202221 has 16 divisors (see below), whose sum is σ = 14666527680. Its totient is φ = 6283209600.

The previous prime is 10212202181. The next prime is 10212202229. The reversal of 10212202221 is 12220221201.

It is not a de Polignac number, because 10212202221 - 2¹³ = 10212194029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212202229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203670 + ... + 248808.

It is an arithmetic number, because the mean of its divisors is an integer number (916657980).

Almost surely, 2^10212202221 is an apocalyptic number.

It is an amenable number.

10212202221 is a deficient number, since it is larger than the sum of its proper divisors (4454325459).

10212202221 is a wasteful number, since it uses less digits than its factorization.

10212202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50956.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10212202221 its reverse (12220221201), we get a palindrome (22432423422).

The spelling of 10212202221 in words is "ten billion, two hundred twelve million, two hundred two thousand, two hundred twenty-one".