100121220110206 has 4 divisors (see below), whose sum is σ = 150181830165312. Its totient is φ = 50060610055102.

The previous prime is 100121220110183. The next prime is 100121220110207. The reversal of 100121220110206 is 602011022121001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121220110207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25030305027550 + ... + 25030305027553.

It is an arithmetic number, because the mean of its divisors is an integer number (37545457541328).

Almost surely, 2^{100121220110206} is an apocalyptic number.

100121220110206 is a deficient number, since it is larger than the sum of its proper divisors (50060610055106).

100121220110206 is an equidigital number, since it uses as much as digits as its factorization.

100121220110206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50060610055105.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 100121220110206 its reverse (602011022121001), we get a palindrome (702132242231207).

The spelling of 100121220110206 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two hundred six".