121101200111002 has 4 divisors (see below), whose sum is σ = 181651800166506. Its totient is φ = 60550600055500.

The previous prime is 121101200110967. The next prime is 121101200111063. The reversal of 121101200111002 is 200111002101121.

It is a happy number.

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., 111572131198441 + 9529068912561 = 10562771^2 + 3086919^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275300027749 + ... + 30275300027752.

Almost surely, 2^{121101200111002} is an apocalyptic number.

121101200111002 is a deficient number, since it is larger than the sum of its proper divisors (60550600055504).

121101200111002 is an equidigital number, since it uses as much as digits as its factorization.

121101200111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60550600055503.

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

Adding to 121101200111002 its reverse (200111002101121), we get a palindrome (321212202212123).

The spelling of 121101200111002 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred million, one hundred eleven thousand, two".