2101201121122 has 4 divisors (see below), whose sum is σ = 3151801681686. Its totient is φ = 1050600560560.

The previous prime is 2101201121119. The next prime is 2101201121177. The reversal of 2101201121122 is 2211211021012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1844568706201 + 256632414921 = 1358149^2 + 506589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101201121096 and 2101201121105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525300280279 + ... + 525300280282.

Almost surely, 2^{2101201121122} is an apocalyptic number.

2101201121122 is a deficient number, since it is larger than the sum of its proper divisors (1050600560564).

2101201121122 is a wasteful number, since it uses less digits than its factorization.

2101201121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050600560563.

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

Adding to 2101201121122 its reverse (2211211021012), we get a palindrome (4312412142134).

The spelling of 2101201121122 in words is "two trillion, one hundred one billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-two".