120221101210020 has 144 divisors (see below), whose sum is σ = 347869038242880. Its totient is φ = 31011055013120.

The previous prime is 120221101209991. The next prime is 120221101210061. The reversal of 120221101210020 is 20012101122021.

It is a super-2 number, since 2×120221101210020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12280591 + ... + 19780169.

It is an arithmetic number, because the mean of its divisors is an integer number (2415757210020).

Almost surely, 2^{120221101210020} is an apocalyptic number.

120221101210020 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 120221101210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173934519121440).

120221101210020 is an abundant number, since it is smaller than the sum of its proper divisors (227647937032860).

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

120221101210020 is a wasteful number, since it uses less digits than its factorization.

120221101210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499786 (or 7499713 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120221101210020 its reverse (20012101122021), we get a palindrome (140233202332041).

The spelling of 120221101210020 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred one million, two hundred ten thousand, twenty".