2102211131122 has 4 divisors (see below), whose sum is σ = 3153316696686. Its totient is φ = 1051105565560.

The previous prime is 2102211131101. The next prime is 2102211131123. The reversal of 2102211131122 is 2211311122012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1626443653041 + 475767478081 = 1275321^2 + 689759^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2102211131122.

It is not an unprimeable number, because it can be changed into a prime (2102211131123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525552782779 + ... + 525552782782.

Almost surely, 2^{2102211131122} is an apocalyptic number.

2102211131122 is a deficient number, since it is larger than the sum of its proper divisors (1051105565564).

2102211131122 is a wasteful number, since it uses less digits than its factorization.

2102211131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051105565563.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2102211131122 its reverse (2211311122012), we get a palindrome (4313522253134).

The spelling of 2102211131122 in words is "two trillion, one hundred two billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty-two".