102120212221222 has 64 divisors (see below), whose sum is σ = 171247236048000. Its totient is φ = 45348549055488.

The previous prime is 102120212221189. The next prime is 102120212221249. The reversal of 102120212221222 is 222122212021201.

It is a super-4 number, since 4×102120212221222⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102120212221193 and 102120212221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387761404 + ... + 388024672.

It is an arithmetic number, because the mean of its divisors is an integer number (2675738063250).

Almost surely, 2^{102120212221222} is an apocalyptic number.

102120212221222 is a deficient number, since it is larger than the sum of its proper divisors (69127023826778).

102120212221222 is a wasteful number, since it uses less digits than its factorization.

102120212221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265105.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102120212221222 its reverse (222122212021201), we get a palindrome (324242424242423).

The spelling of 102120212221222 in words is "one hundred two trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".