12222011120020 has 24 divisors (see below), whose sum is σ = 27640548225864. Its totient is φ = 4512742567296.

The previous prime is 12222011120003. The next prime is 12222011120051. The reversal of 12222011120020 is 2002111022221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 204959020176 + 12017052099844 = 452724^2 + 3466562^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12222011119976 and 12222011120003.

It is a congruent 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, 23503867279 + ... + 23503867798.

It is an arithmetic number, because the mean of its divisors is an integer number (1151689509411).

Almost surely, 2^{12222011120020} is an apocalyptic number.

12222011120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222011120020 is an abundant number, since it is smaller than the sum of its proper divisors (15418537105844).

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

12222011120020 is a wasteful number, since it uses less digits than its factorization.

12222011120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47007735099 (or 47007735097 counting only the distinct ones).

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

Adding to 12222011120020 its reverse (2002111022221), we get a palindrome (14224122142241).

The spelling of 12222011120020 in words is "twelve trillion, two hundred twenty-two billion, eleven million, one hundred twenty thousand, twenty".