10002120212222 has 4 divisors (see below), whose sum is σ = 15003180318336. Its totient is φ = 5001060106110.

The previous prime is 10002120212209. The next prime is 10002120212239. The reversal of 10002120212222 is 22221202120001.

It is a happy number.

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 10002120212222.

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, 2500530053054 + ... + 2500530053057.

It is an arithmetic number, because the mean of its divisors is an integer number (3750795079584).

Almost surely, 2^{10002120212222} is an apocalyptic number.

10002120212222 is a deficient number, since it is larger than the sum of its proper divisors (5001060106114).

10002120212222 is an equidigital number, since it uses as much as digits as its factorization.

10002120212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001060106113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10002120212222 its reverse (22221202120001), we get a palindrome (32223322332223).

The spelling of 10002120212222 in words is "ten trillion, two billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-two".