121202110220 has 12 divisors (see below), whose sum is σ = 254524431504. Its totient is φ = 48480844080.

The previous prime is 121202110199. The next prime is 121202110229. The reversal of 121202110220 is 22011202121.

It is a junction number, because it is equal to n+sod(n) for n = 121202110195 and 121202110204.

It is not an unprimeable number, because it can be changed into a prime (121202110229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030052736 + ... + 3030052775.

It is an arithmetic number, because the mean of its divisors is an integer number (21210369292).

Almost surely, 2^121202110220 is an apocalyptic number.

121202110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202110220 is an abundant number, since it is smaller than the sum of its proper divisors (133322321284).

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

121202110220 is a wasteful number, since it uses less digits than its factorization.

121202110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060105520 (or 6060105518 counting only the distinct ones).

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

Adding to 121202110220 its reverse (22011202121), we get a palindrome (143213312341).

The spelling of 121202110220 in words is "one hundred twenty-one billion, two hundred two million, one hundred ten thousand, two hundred twenty".