201121211002231 has 8 divisors (see below), whose sum is σ = 216593095872384. Its totient is φ = 185649472201440.

The previous prime is 201121211002183. The next prime is 201121211002237. The reversal of 201121211002231 is 132200112121102.

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

It is not a de Polignac number, because 201121211002231 - 2¹⁵ = 201121210969463 is a prime.

It is a super-2 number, since 2×201121211002231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201121211002199 and 201121211002208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121211002237) 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, 33649300 + ... + 39172921.

It is an arithmetic number, because the mean of its divisors is an integer number (27074136984048).

Almost surely, 2^{201121211002231} is an apocalyptic number.

201121211002231 is a deficient number, since it is larger than the sum of its proper divisors (15471884870153).

201121211002231 is a wasteful number, since it uses less digits than its factorization.

201121211002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73034681.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201121211002231 its reverse (132200112121102), we get a palindrome (333321323123333).

The spelling of 201121211002231 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred eleven million, two thousand, two hundred thirty-one".