2212121012 has 6 divisors (see below), whose sum is σ = 3871211778. Its totient is φ = 1106060504.

The previous prime is 2212120969. The next prime is 2212121029. The reversal of 2212121012 is 2101212122.

It can be written as a sum of positive squares in only one way, i.e., 1879569316 + 332551696 = 43354^2 + 18236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276515123 + ... + 276515130.

It is an arithmetic number, because the mean of its divisors is an integer number (645201963).

Almost surely, 2^2212121012 is an apocalyptic number.

It is an amenable number.

2212121012 is a deficient number, since it is larger than the sum of its proper divisors (1659090766).

2212121012 is a wasteful number, since it uses less digits than its factorization.

2212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553030257 (or 553030255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2212121012 is about 47033.1905360459. The cubic root of 2212121012 is about 1302.9756318641.

Adding to 2212121012 its reverse (2101212122), we get a palindrome (4313333134).

The spelling of 2212121012 in words is "two billion, two hundred twelve million, one hundred twenty-one thousand, twelve".