121022412 has 96 divisors (see below), whose sum is σ = 346063872. Its totient is φ = 32161536.

The previous prime is 121022401. The next prime is 121022413. The reversal of 121022412 is 214220121.

It is a junction number, because it is equal to n+sod(n) for n = 121022391 and 121022400.

It is not an unprimeable number, because it can be changed into a prime (121022413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70638 + ... + 72330.

It is an arithmetic number, because the mean of its divisors is an integer number (3604832).

Almost surely, 2^121022412 is an apocalyptic number.

121022412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121022412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173031936).

121022412 is an abundant number, since it is smaller than the sum of its proper divisors (225041460).

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

121022412 is a wasteful number, since it uses less digits than its factorization.

121022412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 121022412 is about 11001.0186801041. The cubic root of 121022412 is about 494.6392801013.

Adding to 121022412 its reverse (214220121), we get a palindrome (335242533).

The spelling of 121022412 in words is "one hundred twenty-one million, twenty-two thousand, four hundred twelve".