201001211022121 has 8 divisors (see below), whose sum is σ = 201058653744000. Its totient is φ = 200943772466640.

The previous prime is 201001211022109. The next prime is 201001211022133. The reversal of 201001211022121 is 121220112100102.

It is an interprime number because it is at equal distance from previous prime (201001211022109) and next prime (201001211022133).

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 201001211022121 - 2¹⁹ = 201001210497833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001211022095 and 201001211022104.

It is not an unprimeable number, because it can be changed into a prime (201001211022181) 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, 96768930 + ... + 98824228.

It is an arithmetic number, because the mean of its divisors is an integer number (25132331718000).

Almost surely, 2^{201001211022121} is an apocalyptic number.

It is an amenable number.

201001211022121 is a deficient number, since it is larger than the sum of its proper divisors (57442721879).

201001211022121 is a wasteful number, since it uses less digits than its factorization.

201001211022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083199.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201001211022121 its reverse (121220112100102), we get a palindrome (322221323122223).

The spelling of 201001211022121 in words is "two hundred one trillion, one billion, two hundred eleven million, twenty-two thousand, one hundred twenty-one".