120221121212220 has 192 divisors, whose sum is σ = 397335627279360. Its totient is φ = 26591315392512.

The previous prime is 120221121212191. The next prime is 120221121212239. The reversal of 120221121212220 is 22212121122021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35366590 + ... + 38616549.

It is an arithmetic number, because the mean of its divisors is an integer number (2069456392080).

Almost surely, 2^{120221121212220} is an apocalyptic number.

120221121212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221121212220 is an abundant number, since it is smaller than the sum of its proper divisors (277114506067140).

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

120221121212220 is a wasteful number, since it uses less digits than its factorization.

120221121212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73983284 (or 73983282 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 120221121212220 its reverse (22212121122021), we get a palindrome (142433242334241).

The spelling of 120221121212220 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty".