121022201200220 has 24 divisors (see below), whose sum is σ = 254146865995008. Its totient is φ = 48408834104000.

The previous prime is 121022201200163. The next prime is 121022201200223. The reversal of 121022201200220 is 22002102220121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022201200223) 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, 25093445 + ... + 29524995.

It is an arithmetic number, because the mean of its divisors is an integer number (10589452749792).

Almost surely, 2^{121022201200220} is an apocalyptic number.

121022201200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022201200220 is an abundant number, since it is smaller than the sum of its proper divisors (133124664794788).

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

121022201200220 is a wasteful number, since it uses less digits than its factorization.

121022201200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797021 (or 5797019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121022201200220 its reverse (22002102220121), we get a palindrome (143024303420341).

The spelling of 121022201200220 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred one million, two hundred thousand, two hundred twenty".