222121010012 has 24 divisors (see below), whose sum is σ = 433910813952. Its totient is φ = 98616092400.

The previous prime is 222121010003. The next prime is 222121010047. The reversal of 222121010012 is 210010121222.

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, 58698164 + ... + 58701947.

It is an arithmetic number, because the mean of its divisors is an integer number (18079617248).

Almost surely, 2^222121010012 is an apocalyptic number.

222121010012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222121010012 is a deficient number, since it is larger than the sum of its proper divisors (211789803940).

222121010012 is a wasteful number, since it uses less digits than its factorization.

222121010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117400169 (or 117400167 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222121010012 its reverse (210010121222), we get a palindrome (432131131234).

The spelling of 222121010012 in words is "two hundred twenty-two billion, one hundred twenty-one million, ten thousand, twelve".