242102051421 has 8 divisors (see below), whose sum is σ = 322862347584. Its totient is φ = 161371561440.

The previous prime is 242102051339. The next prime is 242102051437. The reversal of 242102051421 is 124150201242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242102051421 - 2²⁷ = 241967833693 is a prime.

It is a super-2 number, since 2×242102051421² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242102051391 and 242102051400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242102051491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7432585 + ... + 7465086.

It is an arithmetic number, because the mean of its divisors is an integer number (40357793448).

Almost surely, 2^242102051421 is an apocalyptic number.

It is an amenable number.

242102051421 is a deficient number, since it is larger than the sum of its proper divisors (80760296163).

242102051421 is a wasteful number, since it uses less digits than its factorization.

242102051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14903091.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 242102051421 its reverse (124150201242), we get a palindrome (366252252663).

The spelling of 242102051421 in words is "two hundred forty-two billion, one hundred two million, fifty-one thousand, four hundred twenty-one".