42122002 has 32 divisors (see below), whose sum is σ = 69854400. Its totient is φ = 18932160.

The previous prime is 42121997. The next prime is 42122023. The reversal of 42122002 is 20022124.

It is a Harshad number since it is a multiple of its sum of digits (13).

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 15 ways as a sum of consecutive naturals, for example, 282624 + ... + 282772.

It is an arithmetic number, because the mean of its divisors is an integer number (2182950).

Almost surely, 2^42122002 is an apocalyptic number.

42122002 is a deficient number, since it is larger than the sum of its proper divisors (27732398).

42122002 is a wasteful number, since it uses less digits than its factorization.

42122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 42122002 is about 6490.1465314737. The cubic root of 42122002 is about 347.9389122967.

Adding to 42122002 its reverse (20022124), we get a palindrome (62144126).

The spelling of 42122002 in words is "forty-two million, one hundred twenty-two thousand, two".