121122010220 has 24 divisors (see below), whose sum is σ = 262561262208. Its totient is φ = 46885939200.

The previous prime is 121122010213. The next prime is 121122010223. The reversal of 121122010220 is 22010221121.

It is a junction number, because it is equal to n+sod(n) for n = 121122010195 and 121122010204.

It is not an unprimeable number, because it can be changed into a prime (121122010223) 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, 97678421 + ... + 97679660.

It is an arithmetic number, because the mean of its divisors is an integer number (10940052592).

Almost surely, 2^121122010220 is an apocalyptic number.

121122010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122010220 is an abundant number, since it is smaller than the sum of its proper divisors (141439251988).

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

121122010220 is a wasteful number, since it uses less digits than its factorization.

121122010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195358121 (or 195358119 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121122010220 its reverse (22010221121), we get a palindrome (143132231341).

The spelling of 121122010220 in words is "one hundred twenty-one billion, one hundred twenty-two million, ten thousand, two hundred twenty".