10211212222 has 16 divisors (see below), whose sum is σ = 15427904544. Its totient is φ = 5068620000.

The previous prime is 10211212217. The next prime is 10211212283. The reversal of 10211212222 is 22221211201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10211212196 and 10211212205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516072 + ... + 535492.

It is an arithmetic number, because the mean of its divisors is an integer number (964244034).

Almost surely, 2^10211212222 is an apocalyptic number.

10211212222 is a deficient number, since it is larger than the sum of its proper divisors (5216692322).

10211212222 is a wasteful number, since it uses less digits than its factorization.

10211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21315.

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

Adding to 10211212222 its reverse (22221211201), we get a palindrome (32432423423).

The spelling of 10211212222 in words is "ten billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".