202120120001 has 8 divisors (see below), whose sum is σ = 213492221184. Its totient is φ = 191051274960.

The previous prime is 202120119983. The next prime is 202120120109. The reversal of 202120120001 is 100021021202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202120120001 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 (202120120201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75812666 + ... + 75815331.

It is an arithmetic number, because the mean of its divisors is an integer number (26686527648).

Almost surely, 2^202120120001 is an apocalyptic number.

It is an amenable number.

202120120001 is a deficient number, since it is larger than the sum of its proper divisors (11372101183).

202120120001 is a wasteful number, since it uses less digits than its factorization.

202120120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151628071.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202120120001 its reverse (100021021202), we get a palindrome (302141141203).

The spelling of 202120120001 in words is "two hundred two billion, one hundred twenty million, one hundred twenty thousand, one".