201111212021202 has 48 divisors (see below), whose sum is σ = 497990740321152. Its totient is φ = 57460222546560.

The previous prime is 201111212021197. The next prime is 201111212021227. The reversal of 201111212021202 is 202120212111102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68293627 + ... + 71177537.

It is an arithmetic number, because the mean of its divisors is an integer number (10374807090024).

Almost surely, 2^{201111212021202} is an apocalyptic number.

201111212021202 is an abundant number, since it is smaller than the sum of its proper divisors (296879528299950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111212021202 is a wasteful number, since it uses less digits than its factorization.

201111212021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437383 (or 3437380 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201111212021202 its reverse (202120212111102), we get a palindrome (403231424132304).

The spelling of 201111212021202 in words is "two hundred one trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred two".