211222221212022 has 64 divisors (see below), whose sum is σ = 436514258269440. Its totient is φ = 68086949065344.

The previous prime is 211222221212003. The next prime is 211222221212039. The reversal of 211222221212022 is 220212122222112.

It is a happy number.

It is a super-2 number, since 2×211222221212022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222221211983 and 211222221212001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20117953 + ... + 28760675.

It is an arithmetic number, because the mean of its divisors is an integer number (6820535285460).

Almost surely, 2^{211222221212022} is an apocalyptic number.

211222221212022 is an abundant number, since it is smaller than the sum of its proper divisors (225292037057418).

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

211222221212022 is a wasteful number, since it uses less digits than its factorization.

211222221212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643437.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211222221212022 its reverse (220212122222112), we get a palindrome (431434343434134).

The spelling of 211222221212022 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twelve thousand, twenty-two".