12020213023020 has 36 divisors (see below), whose sum is σ = 36461312837040. Its totient is φ = 3205390139424.

The previous prime is 12020213023019. The next prime is 12020213023037. The reversal of 12020213023020 is 2032031202021.

12020213023020 is a `hidden beast` number, since 1 + 20 + 20 + 21 + 302 + 302 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12020213023020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12020213022984 and 12020213023002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33389480440 + ... + 33389480799.

Almost surely, 2^{12020213023020} is an apocalyptic number.

12020213023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020213023020 is an abundant number, since it is smaller than the sum of its proper divisors (24441099814020).

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

12020213023020 is a wasteful number, since it uses less digits than its factorization.

12020213023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66778961254 (or 66778961249 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12020213023020 its reverse (2032031202021), we get a palindrome (14052244225041).

The spelling of 12020213023020 in words is "twelve trillion, twenty billion, two hundred thirteen million, twenty-three thousand, twenty".