20122002001201 has 4 divisors (see below), whose sum is σ = 20501662416372. Its totient is φ = 19742341586032.

The previous prime is 20122002001181. The next prime is 20122002001291. The reversal of 20122002001201 is 10210020022102.

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 2 ways, for example, as 12770724168225 + 7351277832976 = 3573615^2 + 2711324^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122002001201 - 2⁵ = 20122002001169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122002001291) 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, 189830207506 + ... + 189830207611.

It is an arithmetic number, because the mean of its divisors is an integer number (5125415604093).

Almost surely, 2^{20122002001201} is an apocalyptic number.

It is an amenable number.

20122002001201 is a deficient number, since it is larger than the sum of its proper divisors (379660415171).

20122002001201 is an equidigital number, since it uses as much as digits as its factorization.

20122002001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379660415170.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122002001201 its reverse (10210020022102), we get a palindrome (30332022023303).

The spelling of 20122002001201 in words is "twenty trillion, one hundred twenty-two billion, two million, one thousand, two hundred one".