120020021211020 has 72 divisors (see below), whose sum is σ = 296724197219184. Its totient is φ = 40653941752704.

The previous prime is 120020021210987. The next prime is 120020021211023. The reversal of 120020021211020 is 20112120020021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 120020021210986 and 120020021211004.

It is not an unprimeable number, because it can be changed into a prime (120020021211023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737686187 + ... + 737848866.

It is an arithmetic number, because the mean of its divisors is an integer number (4121169405822).

Almost surely, 2^{120020021211020} is an apocalyptic number.

120020021211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020021211020 is an abundant number, since it is smaller than the sum of its proper divisors (176704176008164).

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

120020021211020 is a wasteful number, since it uses less digits than its factorization.

120020021211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475535159 (or 1475535150 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120020021211020 its reverse (20112120020021), we get a palindrome (140132141231041).

The spelling of 120020021211020 in words is "one hundred twenty trillion, twenty billion, twenty-one million, two hundred eleven thousand, twenty".