422150021 has 8 divisors (see below), whose sum is σ = 429976704. Its totient is φ = 414378720.

The previous prime is 422150017. The next prime is 422150023. The reversal of 422150021 is 120051224.

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 422150021 - 2² = 422150017 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 (422150023) 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, 1700 + ... + 29106.

It is an arithmetic number, because the mean of its divisors is an integer number (53747088).

Almost surely, 2^422150021 is an apocalyptic number.

It is an amenable number.

422150021 is a deficient number, since it is larger than the sum of its proper divisors (7826683).

422150021 is a wasteful number, since it uses less digits than its factorization.

422150021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 422150021 is about 20546.2897137172. The cubic root of 422150021 is about 750.1629400056.

The spelling of 422150021 in words is "four hundred twenty-two million, one hundred fifty thousand, twenty-one".