10001213222 has 64 divisors (see below), whose sum is σ = 20610906624. Its totient is φ = 3513162240.

The previous prime is 10001213219. The next prime is 10001213231. The reversal of 10001213222 is 22231210001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10001213197 and 10001213206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27998 + ... + 144174.

It is an arithmetic number, because the mean of its divisors is an integer number (322045416).

Almost surely, 2^10001213222 is an apocalyptic number.

10001213222 is an abundant number, since it is smaller than the sum of its proper divisors (10609693402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001213222 is a wasteful number, since it uses less digits than its factorization.

10001213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116253.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10001213222 its reverse (22231210001), we get a palindrome (32232423223).

The spelling of 10001213222 in words is "ten billion, one million, two hundred thirteen thousand, two hundred twenty-two".