2212121022 has 48 divisors (see below), whose sum is σ = 4726719360. Its totient is φ = 690024832.

The previous prime is 2212120969. The next prime is 2212121029. The reversal of 2212121022 is 2201212122.

It is a junction number, because it is equal to n+sod(n) for n = 2212120992 and 2212121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212121029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306823 + ... + 313949.

It is an arithmetic number, because the mean of its divisors is an integer number (98473320).

Almost surely, 2^2212121022 is an apocalyptic number.

2212121022 is an abundant number, since it is smaller than the sum of its proper divisors (2514598338).

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

2212121022 is a wasteful number, since it uses less digits than its factorization.

2212121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345 (or 7328 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2212121022 is about 47033.1906423538. The cubic root of 2212121022 is about 1302.9756338275.

Adding to 2212121022 its reverse (2201212122), we get a palindrome (4413333144).

The spelling of 2212121022 in words is "two billion, two hundred twelve million, one hundred twenty-one thousand, twenty-two".