121120121220222 has 16 divisors (see below), whose sum is σ = 242240350567680. Its totient is φ = 40373355718872.

The previous prime is 121120121220209. The next prime is 121120121220247. The reversal of 121120121220222 is 222022121021121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22613083 + ... + 27451625.

It is an arithmetic number, because the mean of its divisors is an integer number (15140021910480).

Almost surely, 2^{121120121220222} is an apocalyptic number.

121120121220222 is an abundant number, since it is smaller than the sum of its proper divisors (121120229347458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120121220222 is a wasteful number, since it uses less digits than its factorization.

121120121220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010607.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121120121220222 its reverse (222022121021121), we get a palindrome (343142242241343).

The spelling of 121120121220222 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".