2011121210122 has 12 divisors (see below), whose sum is σ = 3153544507890. Its totient is φ = 961840578248.

The previous prime is 2011121210113. The next prime is 2011121210171. The reversal of 2011121210122 is 2210121211102.

It can be written as a sum of positive squares in only one way, i.e., 1413794718961 + 597326491161 = 1189031^2 + 772869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011121210096 and 2011121210105.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 950434297 + ... + 950436412.

Almost surely, 2^{2011121210122} is an apocalyptic number.

2011121210122 is a deficient number, since it is larger than the sum of its proper divisors (1142423297768).

2011121210122 is a wasteful number, since it uses less digits than its factorization.

2011121210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900870757 (or 1900870734 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2011121210122 its reverse (2210121211102), we get a palindrome (4221242421224).

The spelling of 2011121210122 in words is "two trillion, eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".