2120122111000 has 64 divisors (see below), whose sum is σ = 5132157732000. Its totient is φ = 818805769600.

The previous prime is 2120122110989. The next prime is 2120122111007. The reversal of 2120122111000 is 1112210212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120122111007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36524830 + ... + 36582829.

Almost surely, 2^{2120122111000} is an apocalyptic number.

2120122111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120122111000 is an abundant number, since it is smaller than the sum of its proper divisors (3012035621000).

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

2120122111000 is a wasteful number, since it uses less digits than its factorization.

2120122111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73107709 (or 73107695 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2120122111000 its reverse (1112210212), we get a palindrome (2121234321212).

The spelling of 2120122111000 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand".