201021212101011 has 8 divisors (see below), whose sum is σ = 270487257873360. Its totient is φ = 132784653864672.

The previous prime is 201021212100949. The next prime is 201021212101019. The reversal of 201021212101011 is 110101212120102.

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 201021212101011 - 2¹³ = 201021212092819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201021212101019) 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, 307371883620 + ... + 307371884273.

It is an arithmetic number, because the mean of its divisors is an integer number (33810907234170).

Almost surely, 2^{201021212101011} is an apocalyptic number.

201021212101011 is a deficient number, since it is larger than the sum of its proper divisors (69466045772349).

201021212101011 is a wasteful number, since it uses less digits than its factorization.

201021212101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614743768005.

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

Adding to 201021212101011 its reverse (110101212120102), we get a palindrome (311122424221113).

The spelling of 201021212101011 in words is "two hundred one trillion, twenty-one billion, two hundred twelve million, one hundred one thousand, eleven".