10201111202122 has 4 divisors (see below), whose sum is σ = 15301666803186. Its totient is φ = 5100555601060.

The previous prime is 10201111202119. The next prime is 10201111202147. The reversal of 10201111202122 is 22120211110201.

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., 8562816160441 + 1638295041681 = 2926229^2 + 1279959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10201111202096 and 10201111202105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550277800529 + ... + 2550277800532.

Almost surely, 2^{10201111202122} is an apocalyptic number.

10201111202122 is a deficient number, since it is larger than the sum of its proper divisors (5100555601064).

10201111202122 is an equidigital number, since it uses as much as digits as its factorization.

10201111202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100555601063.

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

Adding to 10201111202122 its reverse (22120211110201), we get a palindrome (32321322312323).

The spelling of 10201111202122 in words is "ten trillion, two hundred one billion, one hundred eleven million, two hundred two thousand, one hundred twenty-two".