200121220202001 has 8 divisors (see below), whose sum is σ = 304946621260224. Its totient is φ = 114354982972560.

The previous prime is 200121220201993. The next prime is 200121220202027. The reversal of 200121220202001 is 100202022121002.

200121220202001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 200121220202001 - 2³ = 200121220201993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121220202081) 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, 4764790957170 + ... + 4764790957211.

It is an arithmetic number, because the mean of its divisors is an integer number (38118327657528).

Almost surely, 2^{200121220202001} is an apocalyptic number.

200121220202001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200121220202001 is a deficient number, since it is larger than the sum of its proper divisors (104825401058223).

200121220202001 is an equidigital number, since it uses as much as digits as its factorization.

200121220202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9529581914391.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200121220202001 its reverse (100202022121002), we get a palindrome (300323242323003).

The spelling of 200121220202001 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, two hundred two thousand, one".