10221121100122 has 4 divisors (see below), whose sum is σ = 15331681650186. Its totient is φ = 5110560550060.

The previous prime is 10221121100093. The next prime is 10221121100129. The reversal of 10221121100122 is 22100112112201.

10221121100122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 5604634842921 + 4616486257201 = 2367411^2 + 2148601^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10221121100096 and 10221121100105.

It is not an unprimeable number, because it can be changed into a prime (10221121100129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555280275029 + ... + 2555280275032.

Almost surely, 2^{10221121100122} is an apocalyptic number.

10221121100122 is a deficient number, since it is larger than the sum of its proper divisors (5110560550064).

10221121100122 is an equidigital number, since it uses as much as digits as its factorization.

10221121100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110560550063.

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

Adding to 10221121100122 its reverse (22100112112201), we get a palindrome (32321233212323).

The spelling of 10221121100122 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred thousand, one hundred twenty-two".