121200200210101 has 4 divisors (see below), whose sum is σ = 121200290418304. Its totient is φ = 121200110001900.

The previous prime is 121200200209973. The next prime is 121200200210123. The reversal of 121200200210101 is 101012002002121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121200200210101 - 2⁷ = 121200200209973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200200210171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43057815 + ... + 45786196.

It is an arithmetic number, because the mean of its divisors is an integer number (30300072604576).

Almost surely, 2^{121200200210101} is an apocalyptic number.

It is an amenable number.

121200200210101 is a deficient number, since it is larger than the sum of its proper divisors (90208203).

121200200210101 is an equidigital number, since it uses as much as digits as its factorization.

121200200210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90208202.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121200200210101 its reverse (101012002002121), we get a palindrome (222212202212222).

The spelling of 121200200210101 in words is "one hundred twenty-one trillion, two hundred billion, two hundred million, two hundred ten thousand, one hundred one".