21120201033320 has 64 divisors (see below), whose sum is σ = 48063781814400. Its totient is φ = 8351742380800.

The previous prime is 21120201033319. The next prime is 21120201033431. The reversal of 21120201033320 is 2333010202112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21120201033292 and 21120201033301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304084 + ... + 6628803.

It is an arithmetic number, because the mean of its divisors is an integer number (750996590850).

Almost surely, 2^{21120201033320} is an apocalyptic number.

21120201033320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21120201033320 is an abundant number, since it is smaller than the sum of its proper divisors (26943580781080).

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

21120201033320 is a wasteful number, since it uses less digits than its factorization.

21120201033320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933658 (or 7933654 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21120201033320 its reverse (2333010202112), we get a palindrome (23453211235432).

The spelling of 21120201033320 in words is "twenty-one trillion, one hundred twenty billion, two hundred one million, thirty-three thousand, three hundred twenty".