2101001022122 has 4 divisors (see below), whose sum is σ = 3151501533186. Its totient is φ = 1050500511060.

The previous prime is 2101001022079. The next prime is 2101001022139. The reversal of 2101001022122 is 2212201001012.

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., 1877450780401 + 223550241721 = 1370201^2 + 472811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101001022097 and 2101001022106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525250255529 + ... + 525250255532.

Almost surely, 2^{2101001022122} is an apocalyptic number.

2101001022122 is a deficient number, since it is larger than the sum of its proper divisors (1050500511064).

2101001022122 is a wasteful number, since it uses less digits than its factorization.

2101001022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050500511063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101001022122 its reverse (2212201001012), we get a palindrome (4313202023134).

The spelling of 2101001022122 in words is "two trillion, one hundred one billion, one million, twenty-two thousand, one hundred twenty-two".