121202231022 has 48 divisors (see below), whose sum is σ = 263207468160. Its totient is φ = 40308141456.

The previous prime is 121202231021. The next prime is 121202231053. The reversal of 121202231022 is 220132202121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121202230986 and 121202231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202231021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16785729 + ... + 16792947.

It is an arithmetic number, because the mean of its divisors is an integer number (5483488920).

Almost surely, 2^121202231022 is an apocalyptic number.

121202231022 is an abundant number, since it is smaller than the sum of its proper divisors (142005237138).

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

121202231022 is a wasteful number, since it uses less digits than its factorization.

121202231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237 (or 9234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121202231022 its reverse (220132202121), we get a palindrome (341334433143).

The spelling of 121202231022 in words is "one hundred twenty-one billion, two hundred two million, two hundred thirty-one thousand, twenty-two".