102121020222222 has 32 divisors (see below), whose sum is σ = 207206939199744. Its totient is φ = 33546598848000.

The previous prime is 102121020222203. The next prime is 102121020222227. The reversal of 102121020222222 is 222222020121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121020222227) 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 15 ways as a sum of consecutive naturals, for example, 50069779 + ... + 52069422.

It is an arithmetic number, because the mean of its divisors is an integer number (6475216849992).

Almost surely, 2^{102121020222222} is an apocalyptic number.

102121020222222 is an abundant number, since it is smaller than the sum of its proper divisors (105085918977522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121020222222 is a wasteful number, since it uses less digits than its factorization.

102121020222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102141624.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102121020222222 its reverse (222222020121201), we get a palindrome (324343040343423).

The spelling of 102121020222222 in words is "one hundred two trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, two hundred twenty-two".