2012220121122 has 24 divisors (see below), whose sum is σ = 4361609700864. Its totient is φ = 670463203704.

The previous prime is 2012220121103. The next prime is 2012220121151. The reversal of 2012220121122 is 2211210222102.

It is a happy number.

2012220121122 is a `hidden beast` number, since 201 + 2 + 220 + 121 + 122 = 666.

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 = 2012220121095 and 2012220121104.

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, 23024898 + ... + 23112125.

It is an arithmetic number, because the mean of its divisors is an integer number (181733737536).

Almost surely, 2^{2012220121122} is an apocalyptic number.

2012220121122 is an abundant number, since it is smaller than the sum of its proper divisors (2349389579742).

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

2012220121122 is a wasteful number, since it uses less digits than its factorization.

2012220121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46139454 (or 46139451 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2012220121122 its reverse (2211210222102), we get a palindrome (4223430343224).

The spelling of 2012220121122 in words is "two trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".