121202021020201 has 16 divisors (see below), whose sum is σ = 133531061767488. Its totient is φ = 109091451672000.

The previous prime is 121202021020193. The next prime is 121202021020237. The reversal of 121202021020201 is 102020120202121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121202021020201 - 2³ = 121202021020193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121202021020291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101738671 + ... + 102923083.

It is an arithmetic number, because the mean of its divisors is an integer number (8345691360468).

Almost surely, 2^{121202021020201} is an apocalyptic number.

121202021020201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121202021020201 is a deficient number, since it is larger than the sum of its proper divisors (12329040747287).

121202021020201 is a wasteful number, since it uses less digits than its factorization.

121202021020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276632.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121202021020201 its reverse (102020120202121), we get a palindrome (223222141222322).

The spelling of 121202021020201 in words is "one hundred twenty-one trillion, two hundred two billion, twenty-one million, twenty thousand, two hundred one".