2001210022101 has 8 divisors (see below), whose sum is σ = 2669264282304. Its totient is φ = 1333647888320.

The previous prime is 2001210022027. The next prime is 2001210022103. The reversal of 2001210022101 is 1012200121002.

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 2001210022101 - 2²⁹ = 2000673151189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001210022103) 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, 123022116 + ... + 123038381.

It is an arithmetic number, because the mean of its divisors is an integer number (333658035288).

Almost surely, 2^{2001210022101} is an apocalyptic number.

It is an amenable number.

2001210022101 is a deficient number, since it is larger than the sum of its proper divisors (668054260203).

2001210022101 is a wasteful number, since it uses less digits than its factorization.

2001210022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246063211.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2001210022101 its reverse (1012200121002), we get a palindrome (3013410143103).

The spelling of 2001210022101 in words is "two trillion, one billion, two hundred ten million, twenty-two thousand, one hundred one".