12142242410021 has 8 divisors (see below), whose sum is σ = 12143859001344. Its totient is φ = 12140625959280.

The previous prime is 12142242409991. The next prime is 12142242410033. The reversal of 12142242410021 is 12001424224121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12142242410021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142242410821) 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, 421401011 + ... + 421429823.

It is an arithmetic number, because the mean of its divisors is an integer number (1517982375168).

Almost surely, 2^{12142242410021} is an apocalyptic number.

It is an amenable number.

12142242410021 is a deficient number, since it is larger than the sum of its proper divisors (1616591323).

12142242410021 is a wasteful number, since it uses less digits than its factorization.

12142242410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70291.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 12142242410021 its reverse (12001424224121), we get a palindrome (24143666634142).

The spelling of 12142242410021 in words is "twelve trillion, one hundred forty-two billion, two hundred forty-two million, four hundred ten thousand, twenty-one".