10022221212123 has 4 divisors (see below), whose sum is σ = 13362961616168. Its totient is φ = 6681480808080.

The previous prime is 10022221212121. The next prime is 10022221212149. The reversal of 10022221212123 is 32121212222001.

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

It is not a de Polignac number, because 10022221212123 - 2¹ = 10022221212121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10022221212123.

It is not an unprimeable number, because it can be changed into a prime (10022221212121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670370202018 + ... + 1670370202023.

It is an arithmetic number, because the mean of its divisors is an integer number (3340740404042).

Almost surely, 2^{10022221212123} is an apocalyptic number.

10022221212123 is a deficient number, since it is larger than the sum of its proper divisors (3340740404045).

10022221212123 is an equidigital number, since it uses as much as digits as its factorization.

10022221212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340740404044.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10022221212123 its reverse (32121212222001), we get a palindrome (42143433434124).

The spelling of 10022221212123 in words is "ten trillion, twenty-two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twenty-three".