102212012210122 has 4 divisors (see below), whose sum is σ = 153318018315186. Its totient is φ = 51106006105060.

The previous prime is 102212012209949. The next prime is 102212012210131. The reversal of 102212012210122 is 221012210212201.

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., 56486813724441 + 45725198485681 = 7515771^2 + 6762041^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102212012210122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25553003052529 + ... + 25553003052532.

Almost surely, 2^{102212012210122} is an apocalyptic number.

102212012210122 is a deficient number, since it is larger than the sum of its proper divisors (51106006105064).

102212012210122 is an equidigital number, since it uses as much as digits as its factorization.

102212012210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51106006105063.

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

Adding to 102212012210122 its reverse (221012210212201), we get a palindrome (323224222422323).

The spelling of 102212012210122 in words is "one hundred two trillion, two hundred twelve billion, twelve million, two hundred ten thousand, one hundred twenty-two".