121001111222 has 16 divisors (see below), whose sum is σ = 192745139760. Its totient is φ = 56809089792.

The previous prime is 121001111221. The next prime is 121001111227. The reversal of 121001111222 is 222111100121.

It is a junction number, because it is equal to n+sod(n) for n = 121001111197 and 121001111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001111221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14085263 + ... + 14093850.

It is an arithmetic number, because the mean of its divisors is an integer number (12046571235).

Almost surely, 2^121001111222 is an apocalyptic number.

121001111222 is a deficient number, since it is larger than the sum of its proper divisors (71744028538).

121001111222 is a wasteful number, since it uses less digits than its factorization.

121001111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28179247.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121001111222 its reverse (222111100121), we get a palindrome (343112211343).

The spelling of 121001111222 in words is "one hundred twenty-one billion, one million, one hundred eleven thousand, two hundred twenty-two".