201021001022120 has 32 divisors (see below), whose sum is σ = 452299588485120. Its totient is φ = 80407985087040.

The previous prime is 201021001022071. The next prime is 201021001022143. The reversal of 201021001022120 is 21220100120102.

It is a junction number, because it is equal to n+sod(n) for n = 201021001022095 and 201021001022104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5078432 + ... + 20684111.

It is an arithmetic number, because the mean of its divisors is an integer number (14134362140160).

Almost surely, 2^{201021001022120} is an apocalyptic number.

201021001022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021001022120 is an abundant number, since it is smaller than the sum of its proper divisors (251278587463000).

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

201021001022120 is a wasteful number, since it uses less digits than its factorization.

201021001022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25957625 (or 25957621 counting only the distinct ones).

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

Adding to 201021001022120 its reverse (21220100120102), we get a palindrome (222241101142222).

The spelling of 201021001022120 in words is "two hundred one trillion, twenty-one billion, one million, twenty-two thousand, one hundred twenty".