121210020210220 has 48 divisors (see below), whose sum is σ = 255845306803968. Its totient is φ = 48236119807680.

The previous prime is 121210020210217. The next prime is 121210020210299. The reversal of 121210020210220 is 22012020012121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121210020210194 and 121210020210203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13397794 + ... + 20540713.

It is an arithmetic number, because the mean of its divisors is an integer number (5330110558416).

Almost surely, 2^{121210020210220} is an apocalyptic number.

121210020210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121210020210220 is an abundant number, since it is smaller than the sum of its proper divisors (134635286593748).

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

121210020210220 is a wasteful number, since it uses less digits than its factorization.

121210020210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33939430 (or 33939428 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121210020210220 its reverse (22012020012121), we get a palindrome (143222040222341).

The spelling of 121210020210220 in words is "one hundred twenty-one trillion, two hundred ten billion, twenty million, two hundred ten thousand, two hundred twenty".