242110223040021 has 32 divisors (see below), whose sum is σ = 370845432606720. Its totient is φ = 137630376059904.

The previous prime is 242110223039987. The next prime is 242110223040107. The reversal of 242110223040021 is 120040322011242.

It is not a de Polignac number, because 242110223040021 - 2⁶ = 242110223039957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242110223039973 and 242110223040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242110223041021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452140440 + ... + 452675598.

It is an arithmetic number, because the mean of its divisors is an integer number (11588919768960).

Almost surely, 2^{242110223040021} is an apocalyptic number.

242110223040021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242110223040021 is a deficient number, since it is larger than the sum of its proper divisors (128735209566699).

242110223040021 is a wasteful number, since it uses less digits than its factorization.

242110223040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646985.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 242110223040021 its reverse (120040322011242), we get a palindrome (362150545051263).

The spelling of 242110223040021 in words is "two hundred forty-two trillion, one hundred ten billion, two hundred twenty-three million, forty thousand, twenty-one".