42142210021 has 8 divisors (see below), whose sum is σ = 43428579264. Its totient is φ = 40868150880.

The previous prime is 42142209979. The next prime is 42142210031. The reversal of 42142210021 is 12001224124.

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

It is a cyclic number.

It is not a de Polignac number, because 42142210021 - 2¹¹ = 42142207973 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 (42142210031) 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, 3070575 + ... + 3084268.

It is an arithmetic number, because the mean of its divisors is an integer number (5428572408).

Almost surely, 2^42142210021 is an apocalyptic number.

42142210021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42142210021 is a deficient number, since it is larger than the sum of its proper divisors (1286369243).

42142210021 is a wasteful number, since it uses less digits than its factorization.

42142210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155051.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42142210021 its reverse (12001224124), we get a palindrome (54143434145).

The spelling of 42142210021 in words is "forty-two billion, one hundred forty-two million, two hundred ten thousand, twenty-one".