10002102212122 has 4 divisors (see below), whose sum is σ = 15003153318186. Its totient is φ = 5001051106060.

The previous prime is 10002102212117. The next prime is 10002102212177. The reversal of 10002102212122 is 22121220120001.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 9414593759041 + 587508453081 = 3068321^2 + 766491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10002102212096 and 10002102212105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500525553029 + ... + 2500525553032.

Almost surely, 2^{10002102212122} is an apocalyptic number.

10002102212122 is a deficient number, since it is larger than the sum of its proper divisors (5001051106064).

10002102212122 is an equidigital number, since it uses as much as digits as its factorization.

10002102212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001051106063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10002102212122 its reverse (22121220120001), we get a palindrome (32123322332123).

The spelling of 10002102212122 in words is "ten trillion, two billion, one hundred two million, two hundred twelve thousand, one hundred twenty-two".