2011202212122 has 24 divisors (see below), whose sum is σ = 4507867028340. Its totient is φ = 647283470400.

The previous prime is 2011202212111. The next prime is 2011202212139. The reversal of 2011202212122 is 2212122021102.

It is a happy number.

2011202212122 is a `hidden beast` number, since 201 + 120 + 221 + 2 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1978610770161 + 32591441961 = 1406631^2 + 180531^2 .

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 = 2011202212095 and 2011202212104.

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, 1926438379 + ... + 1926439422.

Almost surely, 2^{2011202212122} is an apocalyptic number.

2011202212122 is an abundant number, since it is smaller than the sum of its proper divisors (2496664816218).

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

2011202212122 is a wasteful number, since it uses less digits than its factorization.

2011202212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852877838 (or 3852877835 counting only the distinct ones).

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

Adding to 2011202212122 its reverse (2212122021102), we get a palindrome (4223324233224).

The spelling of 2011202212122 in words is "two trillion, eleven billion, two hundred two million, two hundred twelve thousand, one hundred twenty-two".