201001022222021 has 8 divisors (see below), whose sum is σ = 229719753204480. Its totient is φ = 172283366048688.

The previous prime is 201001022221999. The next prime is 201001022222023. The reversal of 201001022222021 is 120222220100102.

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 not a de Polignac number, because 201001022222021 - 2⁶ = 201001022221957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001022222023) 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, 268301501 + ... + 269049618.

It is an arithmetic number, because the mean of its divisors is an integer number (28714969150560).

Almost surely, 2^{201001022222021} is an apocalyptic number.

It is an amenable number.

201001022222021 is a deficient number, since it is larger than the sum of its proper divisors (28718730982459).

201001022222021 is an equidigital number, since it uses as much as digits as its factorization.

201001022222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537404563.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201001022222021 its reverse (120222220100102), we get a palindrome (321223242322123).

The spelling of 201001022222021 in words is "two hundred one trillion, one billion, twenty-two million, two hundred twenty-two thousand, twenty-one".