121202120120118 has 32 divisors (see below), whose sum is σ = 262124234763264. Its totient is φ = 37215169130112.

The previous prime is 121202120120117. The next prime is 121202120120153. The reversal of 121202120120118 is 811021021202121.

It is a super-2 number, since 2×121202120120118² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202120120117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12641017330 + ... + 12641026917.

It is an arithmetic number, because the mean of its divisors is an integer number (8191382336352).

Almost surely, 2^{121202120120118} is an apocalyptic number.

121202120120118 is an abundant number, since it is smaller than the sum of its proper divisors (140922114643146).

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

121202120120118 is a wasteful number, since it uses less digits than its factorization.

121202120120118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25282044316.

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 121202120120118 its reverse (811021021202121), we get a palindrome (932223141322239).

The spelling of 121202120120118 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twenty million, one hundred twenty thousand, one hundred eighteen".