202122042 has 8 divisors (see below), whose sum is σ = 404244096. Its totient is φ = 67374012.

The previous prime is 202122029. The next prime is 202122073. The reversal of 202122042 is 240221202.

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

202122042 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16843498 + ... + 16843509.

It is an arithmetic number, because the mean of its divisors is an integer number (50530512).

Almost surely, 2^202122042 is an apocalyptic number.

202122042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202122042 is a wasteful number, since it uses less digits than its factorization.

202122042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33687012.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 202122042 is about 14216.9631778379. The cubic root of 202122042 is about 586.8645715897.

Adding to 202122042 its reverse (240221202), we get a palindrome (442343244).

The spelling of 202122042 in words is "two hundred two million, one hundred twenty-two thousand, forty-two".