20012021233320 has 32 divisors (see below), whose sum is σ = 60036063700320. Its totient is φ = 5336538995520.

The previous prime is 20012021233283. The next prime is 20012021233439. The reversal of 20012021233320 is 2333212021002.

It is a happy number.

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, 83383421686 + ... + 83383421925.

It is an arithmetic number, because the mean of its divisors is an integer number (1876126990635).

Almost surely, 2^{20012021233320} is an apocalyptic number.

20012021233320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012021233320 is an abundant number, since it is smaller than the sum of its proper divisors (40024042467000).

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

20012021233320 is a wasteful number, since it uses less digits than its factorization.

20012021233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166766843625 (or 166766843621 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20012021233320 its reverse (2333212021002), we get a palindrome (22345233254322).

The spelling of 20012021233320 in words is "twenty trillion, twelve billion, twenty-one million, two hundred thirty-three thousand, three hundred twenty".