121222022020112 has 20 divisors (see below), whose sum is σ = 252934411330860. Its totient is φ = 55948625547648.

The previous prime is 121222022020087. The next prime is 121222022020129. The reversal of 121222022020112 is 211020220222121.

It can be written as a sum of positive squares in 2 ways, for example, as 63171276257296 + 58050745762816 = 7948036^2 + 7619104^2 .

It is a super-3 number, since 3×121222022020112³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291399091187 + ... + 291399091602.

It is an arithmetic number, because the mean of its divisors is an integer number (12646720566543).

Almost surely, 2^{121222022020112} is an apocalyptic number.

It is an amenable number.

121222022020112 is an abundant number, since it is smaller than the sum of its proper divisors (131712389310748).

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

121222022020112 is a wasteful number, since it uses less digits than its factorization.

121222022020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582798182810 (or 582798182804 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121222022020112 its reverse (211020220222121), we get a palindrome (332242242242233).

The spelling of 121222022020112 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twenty-two million, twenty thousand, one hundred twelve".