201121211030 has 16 divisors (see below), whose sum is σ = 362026252224. Its totient is φ = 80446690560.

The previous prime is 201121211029. The next prime is 201121211087. The reversal of 201121211030 is 30112121102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201121210996 and 201121211014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306470 + ... + 704390.

It is an arithmetic number, because the mean of its divisors is an integer number (22626640764).

Almost surely, 2^201121211030 is an apocalyptic number.

201121211030 is a deficient number, since it is larger than the sum of its proper divisors (160905041194).

201121211030 is a wasteful number, since it uses less digits than its factorization.

201121211030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448471.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201121211030 its reverse (30112121102), we get a palindrome (231233332132).

The spelling of 201121211030 in words is "two hundred one billion, one hundred twenty-one million, two hundred eleven thousand, thirty".