211221212220022 has 8 divisors (see below), whose sum is σ = 316848618419400. Its totient is φ = 105605006080224.

The previous prime is 211221212219989. The next prime is 211221212220121. The reversal of 211221212220022 is 220022212122112.

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

It is a super-2 number, since 2×211221212220022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221212219975 and 211221212220002.

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, 2799967747 + ... + 2800043182.

It is an arithmetic number, because the mean of its divisors is an integer number (39606077302425).

Almost surely, 2^{211221212220022} is an apocalyptic number.

211221212220022 is a deficient number, since it is larger than the sum of its proper divisors (105627406199378).

211221212220022 is a wasteful number, since it uses less digits than its factorization.

211221212220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600029790.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 211221212220022 its reverse (220022212122112), we get a palindrome (431243424342134).

The spelling of 211221212220022 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, twenty-two".