102120011021222 has 4 divisors (see below), whose sum is σ = 153180016531836. Its totient is φ = 51060005510610.

The previous prime is 102120011021183. The next prime is 102120011021243. The reversal of 102120011021222 is 222120110021201.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102120011021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530002755304 + ... + 25530002755307.

It is an arithmetic number, because the mean of its divisors is an integer number (38295004132959).

Almost surely, 2^{102120011021222} is an apocalyptic number.

102120011021222 is a deficient number, since it is larger than the sum of its proper divisors (51060005510614).

102120011021222 is an equidigital number, since it uses as much as digits as its factorization.

102120011021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51060005510613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102120011021222 its reverse (222120110021201), we get a palindrome (324240121042423).

The spelling of 102120011021222 in words is "one hundred two trillion, one hundred twenty billion, eleven million, twenty-one thousand, two hundred twenty-two".