121200222022220 has 48 divisors (see below), whose sum is σ = 277688117554848. Its totient is φ = 44068137039360.

The previous prime is 121200222022207. The next prime is 121200222022307. The reversal of 121200222022220 is 22220222002121.

121200222022220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121200222022192 and 121200222022201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27112697 + ... + 31264976.

It is an arithmetic number, because the mean of its divisors is an integer number (5785169115726).

Almost surely, 2^{121200222022220} is an apocalyptic number.

121200222022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200222022220 is an abundant number, since it is smaller than the sum of its proper divisors (156487895532628).

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

121200222022220 is a wasteful number, since it uses less digits than its factorization.

121200222022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58387130 (or 58387128 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 121200222022220 its reverse (22220222002121), we get a palindrome (143420444024341).

The spelling of 121200222022220 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty".