201210211021101 has 8 divisors (see below), whose sum is σ = 268280370488160. Its totient is φ = 134140096117392.

The previous prime is 201210211021091. The next prime is 201210211021103. The reversal of 201210211021101 is 101120112012102.

It is a happy number.

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

It is not a de Polignac number, because 201210211021101 - 2³⁰ = 201209137279277 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 (201210211021103) 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, 1416510 + ... + 20110368.

It is an arithmetic number, because the mean of its divisors is an integer number (33535046311020).

Almost surely, 2^{201210211021101} is an apocalyptic number.

It is an amenable number.

201210211021101 is a deficient number, since it is larger than the sum of its proper divisors (67070159467059).

201210211021101 is a wasteful number, since it uses less digits than its factorization.

201210211021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22281675.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201210211021101 its reverse (101120112012102), we get a palindrome (302330323033203).

The spelling of 201210211021101 in words is "two hundred one trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, one hundred one".