10002120212926 has 4 divisors (see below), whose sum is σ = 15003180319392. Its totient is φ = 5001060106462.

The previous prime is 10002120212923. The next prime is 10002120212927. The reversal of 10002120212926 is 62921202120001.

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

It is a junction number, because it is equal to n+sod(n) for n = 10002120212894 and 10002120212903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002120212921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500530053230 + ... + 2500530053233.

It is an arithmetic number, because the mean of its divisors is an integer number (3750795079848).

Almost surely, 2^{10002120212926} is an apocalyptic number.

10002120212926 is a deficient number, since it is larger than the sum of its proper divisors (5001060106466).

10002120212926 is an equidigital number, since it uses as much as digits as its factorization.

10002120212926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001060106465.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 10002120212926 its reverse (62921202120001), we get a palindrome (72923322332927).

The spelling of 10002120212926 in words is "ten trillion, two billion, one hundred twenty million, two hundred twelve thousand, nine hundred twenty-six".