121022210210872 has 48 divisors (see below), whose sum is σ = 246655671653160. Its totient is φ = 55627171815936.

The previous prime is 121022210210771. The next prime is 121022210210873. The reversal of 121022210210872 is 278012012220121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022210210873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608566243 + ... + 608765074.

Almost surely, 2^{121022210210872} is an apocalyptic number.

It is an amenable number.

121022210210872 is an abundant number, since it is smaller than the sum of its proper divisors (125633461442288).

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

121022210210872 is a wasteful number, since it uses less digits than its factorization.

121022210210872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217331400 (or 1217331379 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 121022210210872 its reverse (278012012220121), we get a palindrome (399034222430993).

The spelling of 121022210210872 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred ten million, two hundred ten thousand, eight hundred seventy-two".