20121100201222 has 8 divisors (see below), whose sum is σ = 30606743968272. Its totient is φ = 9918852211800.

The previous prime is 20121100201171. The next prime is 20121100201247. The reversal of 20121100201222 is 22210200112102.

It is a happy number.

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

It is a super-3 number, since 3×20121100201222³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121100201196 and 20121100201205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70848944229 + ... + 70848944512.

It is an arithmetic number, because the mean of its divisors is an integer number (3825842996034).

Almost surely, 2^{20121100201222} is an apocalyptic number.

20121100201222 is a deficient number, since it is larger than the sum of its proper divisors (10485643767050).

20121100201222 is a wasteful number, since it uses less digits than its factorization.

20121100201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141697888814.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20121100201222 its reverse (22210200112102), we get a palindrome (42331300313324).

The spelling of 20121100201222 in words is "twenty trillion, one hundred twenty-one billion, one hundred million, two hundred one thousand, two hundred twenty-two".