12011202201220 has 24 divisors (see below), whose sum is σ = 25223592921408. Its totient is φ = 4804467871200.

The previous prime is 12011202201211. The next prime is 12011202201263. The reversal of 12011202201220 is 2210220211021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12011202201194 and 12011202201203.

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, 10811055 + ... + 11870185.

It is an arithmetic number, because the mean of its divisors is an integer number (1050983038392).

Almost surely, 2^{12011202201220} is an apocalyptic number.

12011202201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011202201220 is an abundant number, since it is smaller than the sum of its proper divisors (13212390720188).

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

12011202201220 is a wasteful number, since it uses less digits than its factorization.

12011202201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626171 (or 1626169 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12011202201220 its reverse (2210220211021), we get a palindrome (14221422412241).

The spelling of 12011202201220 in words is "twelve trillion, eleven billion, two hundred two million, two hundred one thousand, two hundred twenty".