2100101100122 has 4 divisors (see below), whose sum is σ = 3150151650186. Its totient is φ = 1050050550060.

The previous prime is 2100101100121. The next prime is 2100101100137. The reversal of 2100101100122 is 2210011010012.

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., 1535936370241 + 564164729881 = 1239329^2 + 751109^2 .

It is not an unprimeable number, because it can be changed into a prime (2100101100121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525025275029 + ... + 525025275032.

Almost surely, 2^{2100101100122} is an apocalyptic number.

2100101100122 is a deficient number, since it is larger than the sum of its proper divisors (1050050550064).

2100101100122 is a wasteful number, since it uses less digits than its factorization.

2100101100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050050550063.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100101100122 its reverse (2210011010012), we get a palindrome (4310112110134).

The spelling of 2100101100122 in words is "two trillion, one hundred billion, one hundred one million, one hundred thousand, one hundred twenty-two".