201021210011222 has 4 divisors (see below), whose sum is σ = 301531815016836. Its totient is φ = 100510605005610.

The previous prime is 201021210011221. The next prime is 201021210011233. The reversal of 201021210011222 is 222110012120102.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201021210011222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021210011221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50255302502804 + ... + 50255302502807.

It is an arithmetic number, because the mean of its divisors is an integer number (75382953754209).

Almost surely, 2^{201021210011222} is an apocalyptic number.

201021210011222 is a deficient number, since it is larger than the sum of its proper divisors (100510605005614).

201021210011222 is a wasteful number, since it uses less digits than its factorization.

201021210011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100510605005613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201021210011222 its reverse (222110012120102), we get a palindrome (423131222131324).

The spelling of 201021210011222 in words is "two hundred one trillion, twenty-one billion, two hundred ten million, eleven thousand, two hundred twenty-two".