10423442221221 has 16 divisors (see below), whose sum is σ = 13905543415680. Its totient is φ = 6945152040960.

The previous prime is 10423442221217. The next prime is 10423442221307. The reversal of 10423442221221 is 12212224432401.

It is not a de Polignac number, because 10423442221221 - 2² = 10423442221217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423442221121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55739845 + ... + 55926533.

It is an arithmetic number, because the mean of its divisors is an integer number (869096463480).

Almost surely, 2^{10423442221221} is an apocalyptic number.

It is an amenable number.

10423442221221 is a deficient number, since it is larger than the sum of its proper divisors (3482101194459).

10423442221221 is a wasteful number, since it uses less digits than its factorization.

10423442221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196796.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 10423442221221 its reverse (12212224432401), we get a palindrome (22635666653622).

The spelling of 10423442221221 in words is "ten trillion, four hundred twenty-three billion, four hundred forty-two million, two hundred twenty-one thousand, two hundred twenty-one".