121220210201201 has 4 divisors (see below), whose sum is σ = 121897418079600. Its totient is φ = 120543002322804.

The previous prime is 121220210201177. The next prime is 121220210201287. The reversal of 121220210201201 is 102102012022121.

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 a de Polignac number, because none of the positive numbers 2^k-121220210201201 is a prime.

It is a super-2 number, since 2×121220210201201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121220210201201.

It is not an unprimeable number, because it can be changed into a prime (121220210206201) 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, 338603938931 + ... + 338603939288.

It is an arithmetic number, because the mean of its divisors is an integer number (30474354519900).

Almost surely, 2^{121220210201201} is an apocalyptic number.

It is an amenable number.

121220210201201 is a deficient number, since it is larger than the sum of its proper divisors (677207878399).

121220210201201 is an equidigital number, since it uses as much as digits as its factorization.

121220210201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677207878398.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220210201201 its reverse (102102012022121), we get a palindrome (223322222223322).

The spelling of 121220210201201 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred ten million, two hundred one thousand, two hundred one".