12011012112020 has 96 divisors (see below), whose sum is σ = 25513328332800. Its totient is φ = 4749503376384.

The previous prime is 12011012111951. The next prime is 12011012112023. The reversal of 12011012112020 is 2021121011021.

It is a super-2 number, since 2×12011012112020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011012111986 and 12011012112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011012112023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491859371 + ... + 491883789.

It is an arithmetic number, because the mean of its divisors is an integer number (265763836800).

Almost surely, 2^{12011012112020} is an apocalyptic number.

12011012112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011012112020 is an abundant number, since it is smaller than the sum of its proper divisors (13502316220780).

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

12011012112020 is a wasteful number, since it uses less digits than its factorization.

12011012112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377 (or 25375 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011012112020 its reverse (2021121011021), we get a palindrome (14032133123041).

The spelling of 12011012112020 in words is "twelve trillion, eleven billion, twelve million, one hundred twelve thousand, twenty".