201121212301311 has 16 divisors (see below), whose sum is σ = 271623356725248. Its totient is φ = 132360655502400.

The previous prime is 201121212301291. The next prime is 201121212301403. The reversal of 201121212301311 is 113103212121102.

It is not a de Polignac number, because 201121212301311 - 2¹⁷ = 201121212170239 is a prime.

It is a super-2 number, since 2×201121212301311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121212303311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339607686 + ... + 1339757811.

It is an arithmetic number, because the mean of its divisors is an integer number (16976459795328).

Almost surely, 2^{201121212301311} is an apocalyptic number.

201121212301311 is a deficient number, since it is larger than the sum of its proper divisors (70502144423937).

201121212301311 is a wasteful number, since it uses less digits than its factorization.

201121212301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679365822.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 201121212301311 its reverse (113103212121102), we get a palindrome (314224424422413).

The spelling of 201121212301311 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twelve million, three hundred one thousand, three hundred eleven".