10111021200122 has 4 divisors (see below), whose sum is σ = 15166531800186. Its totient is φ = 5055510600060.

The previous prime is 10111021200053. The next prime is 10111021200143. The reversal of 10111021200122 is 22100212011101.

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., 7500537941521 + 2610483258601 = 2738711^2 + 1615699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10111021200097 and 10111021200106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527755300029 + ... + 2527755300032.

Almost surely, 2^{10111021200122} is an apocalyptic number.

10111021200122 is a deficient number, since it is larger than the sum of its proper divisors (5055510600064).

10111021200122 is an equidigital number, since it uses as much as digits as its factorization.

10111021200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055510600063.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10111021200122 its reverse (22100212011101), we get a palindrome (32211233211223).

The spelling of 10111021200122 in words is "ten trillion, one hundred eleven billion, twenty-one million, two hundred thousand, one hundred twenty-two".