21120101201222 has 8 divisors (see below), whose sum is σ = 32452838431272. Its totient is φ = 10302488390800.

The previous prime is 21120101201207. The next prime is 21120101201239. The reversal of 21120101201222 is 22210210102112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21120101201222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128781104804 + ... + 128781104967.

It is an arithmetic number, because the mean of its divisors is an integer number (4056604803909).

Almost surely, 2^{21120101201222} is an apocalyptic number.

21120101201222 is a deficient number, since it is larger than the sum of its proper divisors (11332737230050).

21120101201222 is a wasteful number, since it uses less digits than its factorization.

21120101201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257562209814.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21120101201222 its reverse (22210210102112), we get a palindrome (43330311303334).

The spelling of 21120101201222 in words is "twenty-one trillion, one hundred twenty billion, one hundred one million, two hundred one thousand, two hundred twenty-two".