201212021222 has 32 divisors (see below), whose sum is σ = 314193331200. Its totient is φ = 96537679200.

The previous prime is 201212021183. The next prime is 201212021261. The reversal of 201212021222 is 222120212102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201212021183) and next prime (201212021261).

It is a self number, because there is not a number n which added to its sum of digits gives 201212021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6974804 + ... + 7003592.

It is an arithmetic number, because the mean of its divisors is an integer number (9818541600).

Almost surely, 2^201212021222 is an apocalyptic number.

201212021222 is a deficient number, since it is larger than the sum of its proper divisors (112981309978).

201212021222 is a wasteful number, since it uses less digits than its factorization.

201212021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29772.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201212021222 its reverse (222120212102), we get a palindrome (423332233324).

The spelling of 201212021222 in words is "two hundred one billion, two hundred twelve million, twenty-one thousand, two hundred twenty-two".