10212222211 has 4 divisors (see below), whose sum is σ = 10313333424. Its totient is φ = 10111111000.

The previous prime is 10212222193. The next prime is 10212222217. The reversal of 10212222211 is 11222221201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10212222211 - 2⁵ = 10212222179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212222217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50555455 + ... + 50555656.

It is an arithmetic number, because the mean of its divisors is an integer number (2578333356).

Almost surely, 2^10212222211 is an apocalyptic number.

10212222211 is a deficient number, since it is larger than the sum of its proper divisors (101111213).

10212222211 is a wasteful number, since it uses less digits than its factorization.

10212222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10212222211 its reverse (11222221201), we get a palindrome (21434443412).

The spelling of 10212222211 in words is "ten billion, two hundred twelve million, two hundred twenty-two thousand, two hundred eleven".