121112201121222 has 32 divisors (see below), whose sum is σ = 248774454885600. Its totient is φ = 39279088505088.

The previous prime is 121112201121137. The next prime is 121112201121287. The reversal of 121112201121222 is 222121102211121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12433554 + ... + 19920282.

It is an arithmetic number, because the mean of its divisors is an integer number (7774201715175).

Almost surely, 2^{121112201121222} is an apocalyptic number.

121112201121222 is an abundant number, since it is smaller than the sum of its proper divisors (127662253764378).

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

121112201121222 is a wasteful number, since it uses less digits than its factorization.

121112201121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7559640.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121112201121222 its reverse (222121102211121), we get a palindrome (343233303332343).

The spelling of 121112201121222 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred one million, one hundred twenty-one thousand, two hundred twenty-two".