2211221102122 has 8 divisors (see below), whose sum is σ = 3316838818500. Its totient is φ = 1105608162624.

The previous prime is 2211221102089. The next prime is 2211221102131. The reversal of 2211221102122 is 2212011221122.

It can be written as a sum of positive squares in 2 ways, for example, as 2172796869681 + 38424232441 = 1474041^2 + 196021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2211221102122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375904 + ... + 2136292.

Almost surely, 2^{2211221102122} is an apocalyptic number.

2211221102122 is a deficient number, since it is larger than the sum of its proper divisors (1105617716378).

2211221102122 is a wasteful number, since it uses less digits than its factorization.

2211221102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388440.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2211221102122 its reverse (2212011221122), we get a palindrome (4423232323244).

The spelling of 2211221102122 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-two".