121022120 has 32 divisors (see below), whose sum is σ = 273287520. Its totient is φ = 48233280.

The previous prime is 121022117. The next prime is 121022129. The reversal of 121022120 is 21220121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121022129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5975 + ... + 16665.

It is an arithmetic number, because the mean of its divisors is an integer number (8540235).

Almost surely, 2^121022120 is an apocalyptic number.

121022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022120 is an abundant number, since it is smaller than the sum of its proper divisors (152265400).

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

121022120 is a wasteful number, since it uses less digits than its factorization.

121022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985 (or 10981 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121022120 is about 11001.0054085979. The cubic root of 121022120 is about 494.6388822830.

Adding to 121022120 its reverse (21220121), we get a palindrome (142242241).

The spelling of 121022120 in words is "one hundred twenty-one million, twenty-two thousand, one hundred twenty".