120201121222020 has 144 divisors (see below), whose sum is σ = 373107628333440. Its totient is φ = 31306666987008.

The previous prime is 120201121221997. The next prime is 120201121222033. The reversal of 120201121222020 is 20222121102021.

It is a happy number.

120201121222020 is a `hidden beast` number, since 1 + 202 + 0 + 11 + 212 + 220 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120201121221984 and 120201121222002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162302121 + ... + 163041039.

It is an arithmetic number, because the mean of its divisors is an integer number (2591025196760).

Almost surely, 2^{120201121222020} is an apocalyptic number.

120201121222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120201121222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186553814166720).

120201121222020 is an abundant number, since it is smaller than the sum of its proper divisors (252906507111420).

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

120201121222020 is a wasteful number, since it uses less digits than its factorization.

120201121222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759994 (or 759989 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120201121222020 its reverse (20222121102021), we get a palindrome (140423242324041).

The spelling of 120201121222020 in words is "one hundred twenty trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty".