121101200112010 has 16 divisors (see below), whose sum is σ = 223298798256072. Its totient is φ = 47259004921600.

The previous prime is 121101200111993. The next prime is 121101200112037. The reversal of 121101200112010 is 10211002101121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74294763152481 + 46806436959529 = 8619441^2 + 6841523^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147684389971 + ... + 147684390790.

Almost surely, 2^{121101200112010} is an apocalyptic number.

121101200112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101200112010 is a deficient number, since it is larger than the sum of its proper divisors (102197598144062).

121101200112010 is a wasteful number, since it uses less digits than its factorization.

121101200112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295368780809.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101200112010 its reverse (10211002101121), we get a palindrome (131312202213131).

The spelling of 121101200112010 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred million, one hundred twelve thousand, ten".