211222011012 has 24 divisors (see below), whose sum is σ = 518790904800. Its totient is φ = 66701687616.

The previous prime is 211222011001. The next prime is 211222011019. The reversal of 211222011012 is 210110222112.

It is a super-2 number, since 2×211222011012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222010982 and 211222011000.

It is not an unprimeable number, because it can be changed into a prime (211222011019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463205937 + ... + 463206392.

It is an arithmetic number, because the mean of its divisors is an integer number (21616287700).

Almost surely, 2^211222011012 is an apocalyptic number.

It is an amenable number.

211222011012 is an abundant number, since it is smaller than the sum of its proper divisors (307568893788).

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

211222011012 is a wasteful number, since it uses less digits than its factorization.

211222011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926412355 (or 926412353 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211222011012 its reverse (210110222112), we get a palindrome (421332233124).

The spelling of 211222011012 in words is "two hundred eleven billion, two hundred twenty-two million, eleven thousand, twelve".