121111202222 has 8 divisors (see below), whose sum is σ = 192353085936. Its totient is φ = 56993506912.

The previous prime is 121111202221. The next prime is 121111202227. The reversal of 121111202222 is 222202111121.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 121111202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111202221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781047058 + ... + 1781047125.

It is an arithmetic number, because the mean of its divisors is an integer number (24044135742).

Almost surely, 2^121111202222 is an apocalyptic number.

121111202222 is a deficient number, since it is larger than the sum of its proper divisors (71241883714).

121111202222 is a wasteful number, since it uses less digits than its factorization.

121111202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562094202.

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

Adding to 121111202222 its reverse (222202111121), we get a palindrome (343313313343).

The spelling of 121111202222 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred two thousand, two hundred twenty-two".