211221222022 has 8 divisors (see below), whose sum is σ = 335468999736. Its totient is φ = 99398222112.

The previous prime is 211221222001. The next prime is 211221222053. The reversal of 211221222022 is 220222122112.

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

It is a super-2 number, since 2×211221222022² (a number of 23 digits) contains 22 as substring.

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, 3106194408 + ... + 3106194475.

It is an arithmetic number, because the mean of its divisors is an integer number (41933624967).

Almost surely, 2^211221222022 is an apocalyptic number.

211221222022 is a deficient number, since it is larger than the sum of its proper divisors (124247777714).

211221222022 is a wasteful number, since it uses less digits than its factorization.

211221222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212388902.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 211221222022 its reverse (220222122112), we get a palindrome (431443344134).

The spelling of 211221222022 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty-two".