201121212022 has 8 divisors (see below), whose sum is σ = 301696505496. Its totient is φ = 100555710192.

The previous prime is 201121212013. The next prime is 201121212037. The reversal of 201121212022 is 220212121102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 201121211987 and 201121212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2396343 + ... + 2478850.

It is an arithmetic number, because the mean of its divisors is an integer number (37712063187).

Almost surely, 2^201121212022 is an apocalyptic number.

201121212022 is a deficient number, since it is larger than the sum of its proper divisors (100575293474).

201121212022 is a wasteful number, since it uses less digits than its factorization.

201121212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895822.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201121212022 its reverse (220212121102), we get a palindrome (421333333124).

The spelling of 201121212022 in words is "two hundred one billion, one hundred twenty-one million, two hundred twelve thousand, twenty-two".