2120111121012 has 12 divisors (see below), whose sum is σ = 4946925949056. Its totient is φ = 706703707000.

The previous prime is 2120111120999. The next prime is 2120111121043. The reversal of 2120111121012 is 2101211110212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2120111120982 and 2120111121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88337963364 + ... + 88337963387.

It is an arithmetic number, because the mean of its divisors is an integer number (412243829088).

Almost surely, 2^{2120111121012} is an apocalyptic number.

It is an amenable number.

2120111121012 is an abundant number, since it is smaller than the sum of its proper divisors (2826814828044).

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

2120111121012 is a wasteful number, since it uses less digits than its factorization.

2120111121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176675926758 (or 176675926756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2120111121012 its reverse (2101211110212), we get a palindrome (4221322231224).

The spelling of 2120111121012 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, twelve".