42200421221 has 8 divisors (see below), whose sum is σ = 48231363264. Its totient is φ = 36170056800.

The previous prime is 42200421157. The next prime is 42200421287. The reversal of 42200421221 is 12212400224.

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 42200421221 - 2⁶ = 42200421157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42200421193 and 42200421202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200421421) 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, 25481 + ... + 291633.

It is an arithmetic number, because the mean of its divisors is an integer number (6028920408).

Almost surely, 2^42200421221 is an apocalyptic number.

It is an amenable number.

42200421221 is a deficient number, since it is larger than the sum of its proper divisors (6030942043).

42200421221 is a wasteful number, since it uses less digits than its factorization.

42200421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288811.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 42200421221 its reverse (12212400224), we get a palindrome (54412821445).

The spelling of 42200421221 in words is "forty-two billion, two hundred million, four hundred twenty-one thousand, two hundred twenty-one".