121202111211201 has 12 divisors (see below), whose sum is σ = 175688337102928. Its totient is φ = 80515890131544.

The previous prime is 121202111211199. The next prime is 121202111211263. The reversal of 121202111211201 is 102112111202121.

It is a happy number.

121202111211201 is a `hidden beast` number, since 1 + 21 + 20 + 211 + 1 + 211 + 201 = 666.

It is not a de Polignac number, because 121202111211201 - 2¹ = 121202111211199 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121202111281201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23793109195 + ... + 23793114288.

Almost surely, 2^{121202111211201} is an apocalyptic number.

It is an amenable number.

121202111211201 is a deficient number, since it is larger than the sum of its proper divisors (54486225891727).

121202111211201 is a wasteful number, since it uses less digits than its factorization.

121202111211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47586223772 (or 47586223769 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121202111211201 its reverse (102112111202121), we get a palindrome (223314222413322).

The spelling of 121202111211201 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred eleven million, two hundred eleven thousand, two hundred one".