121220132231022 has 32 divisors (see below), whose sum is σ = 273011910718464. Its totient is φ = 35548425873600.

The previous prime is 121220132231017. The next prime is 121220132231057. The reversal of 121220132231022 is 220132231022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220132230983 and 121220132231001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29623686183 + ... + 29623690274.

It is an arithmetic number, because the mean of its divisors is an integer number (8531622209952).

Almost surely, 2^{121220132231022} is an apocalyptic number.

121220132231022 is an abundant number, since it is smaller than the sum of its proper divisors (151791778487442).

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

121220132231022 is a wasteful number, since it uses less digits than its factorization.

121220132231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59247376504.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121220132231022 its reverse (220132231022121), we get a palindrome (341352363253143).

It can be divided in two parts, 121 and 220132231022, that multiplied together give a palindrome (26635999953662).

The spelling of 121220132231022 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirty-two million, two hundred thirty-one thousand, twenty-two".