211222111020222 has 16 divisors (see below), whose sum is σ = 424778168020752. Its totient is φ = 70018379343360.

The previous prime is 211222111020163. The next prime is 211222111020251. The reversal of 211222111020222 is 222020111222112.

It is a super-2 number, since 2×211222111020222² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 97247748003 + ... + 97247750174.

It is an arithmetic number, because the mean of its divisors is an integer number (26548635501297).

Almost surely, 2^{211222111020222} is an apocalyptic number.

211222111020222 is an abundant number, since it is smaller than the sum of its proper divisors (213556057000530).

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

211222111020222 is a wasteful number, since it uses less digits than its factorization.

211222111020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194495498363.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211222111020222 its reverse (222020111222112), we get a palindrome (433242222242334).

The spelling of 211222111020222 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, twenty thousand, two hundred twenty-two".