2102212122002 has 8 divisors (see below), whose sum is σ = 3160808251212. Its totient is φ = 1048609371600.

The previous prime is 2102212122001. The next prime is 2102212122007. The reversal of 2102212122002 is 2002212122012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2083377578881 + 18834543121 = 1443391^2 + 137239^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2102212122001) 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 in 3 ways as a sum of consecutive naturals, for example, 1248343649 + ... + 1248345332.

Almost surely, 2^{2102212122002} is an apocalyptic number.

2102212122002 is a deficient number, since it is larger than the sum of its proper divisors (1058596129210).

2102212122002 is a wasteful number, since it uses less digits than its factorization.

2102212122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496689404.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102212122002 its reverse (2002212122012), we get a palindrome (4104424244014).

The spelling of 2102212122002 in words is "two trillion, one hundred two billion, two hundred twelve million, one hundred twenty-two thousand, two".