222101110012212 has 36 divisors (see below), whose sum is σ = 561573945390276. Its totient is φ = 74013699590400.

The previous prime is 222101110012207. The next prime is 222101110012237. The reversal of 222101110012212 is 212210011101222.

It can be written as a sum of positive squares in 2 ways, for example, as 122136226928676 + 99964883083536 = 11051526^2 + 9998244^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833354373 + ... + 833620844.

It is an arithmetic number, because the mean of its divisors is an integer number (15599276260841).

Almost surely, 2^{222101110012212} is an apocalyptic number.

It is an amenable number.

222101110012212 is an abundant number, since it is smaller than the sum of its proper divisors (339472835378064).

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

222101110012212 is a wasteful number, since it uses less digits than its factorization.

222101110012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666978928 (or 1666978923 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222101110012212 its reverse (212210011101222), we get a palindrome (434311121113434).

The spelling of 222101110012212 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred ten million, twelve thousand, two hundred twelve".