102121211221222 has 8 divisors (see below), whose sum is σ = 153856626598296. Its totient is φ = 50835669021792.

The previous prime is 102121211221207. The next prime is 102121211221279. The reversal of 102121211221222 is 222122112121201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102121211221193 and 102121211221202.

It is a congruent number.

It is an unprimeable number.

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, 112468293843 + ... + 112468294750.

It is an arithmetic number, because the mean of its divisors is an integer number (19232078324787).

Almost surely, 2^{102121211221222} is an apocalyptic number.

102121211221222 is a deficient number, since it is larger than the sum of its proper divisors (51735415377074).

102121211221222 is a wasteful number, since it uses less digits than its factorization.

102121211221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224936588822.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 102121211221222 its reverse (222122112121201), we get a palindrome (324243323342423).

The spelling of 102121211221222 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".