121120222222 has 32 divisors (see below), whose sum is σ = 195736464000. Its totient is φ = 56025170208.

The previous prime is 121120222207. The next prime is 121120222243. The reversal of 121120222222 is 222222021121.

It is a super-2 number, since 2×121120222222² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

121120222222 is a modest number, since divided by 222222 gives 121120 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 121120222222.

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 15 ways as a sum of consecutive naturals, for example, 11349333 + ... + 11359999.

It is an arithmetic number, because the mean of its divisors is an integer number (6116764500).

Almost surely, 2^121120222222 is an apocalyptic number.

121120222222 is a deficient number, since it is larger than the sum of its proper divisors (74616241778).

121120222222 is a wasteful number, since it uses less digits than its factorization.

121120222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17680.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121120222222 its reverse (222222021121), we get a palindrome (343342243343).

The spelling of 121120222222 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".