2122221102212 has 12 divisors (see below), whose sum is σ = 3713903428620. Its totient is φ = 1061105836896.

The previous prime is 2122221102179. The next prime is 2122221102233. The reversal of 2122221102212 is 2122011222212.

It can be written as a sum of positive squares in 2 ways, for example, as 726340289536 + 1395880812676 = 852256^2 + 1181474^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44387 + ... + 2060682.

It is an arithmetic number, because the mean of its divisors is an integer number (309491952385).

Almost surely, 2^{2122221102212} is an apocalyptic number.

It is an amenable number.

2122221102212 is a deficient number, since it is larger than the sum of its proper divisors (1591682326408).

2122221102212 is a wasteful number, since it uses less digits than its factorization.

2122221102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357110 (or 2357108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122221102212 its reverse (2122011222212), we get a palindrome (4244232324424).

The spelling of 2122221102212 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred twelve".