2101121002012 has 48 divisors (see below), whose sum is σ = 3872564942400. Its totient is φ = 995527272960.

The previous prime is 2101121001997. The next prime is 2101121002039. The reversal of 2101121002012 is 2102001211012.

It is a junction number, because it is equal to n+sod(n) for n = 2101121001983 and 2101121002001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145007664 + ... + 145022152.

It is an arithmetic number, because the mean of its divisors is an integer number (80678436300).

Almost surely, 2^{2101121002012} is an apocalyptic number.

It is an amenable number.

2101121002012 is a deficient number, since it is larger than the sum of its proper divisors (1771443940388).

2101121002012 is a wasteful number, since it uses less digits than its factorization.

2101121002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29086 (or 29084 counting only the distinct ones).

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

Adding to 2101121002012 its reverse (2102001211012), we get a palindrome (4203122213024).

The spelling of 2101121002012 in words is "two trillion, one hundred one billion, one hundred twenty-one million, two thousand, twelve".