42102122 has 16 divisors (see below), whose sum is σ = 64204800. Its totient is φ = 20703600.

The previous prime is 42102107. The next prime is 42102131. The reversal of 42102122 is 22120124.

It is a junction number, because it is equal to n+sod(n) for n = 42102097 and 42102106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32279 + ... + 33557.

It is an arithmetic number, because the mean of its divisors is an integer number (4012800).

Almost surely, 2^42102122 is an apocalyptic number.

42102122 is a deficient number, since it is larger than the sum of its proper divisors (22102678).

42102122 is a wasteful number, since it uses less digits than its factorization.

42102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42102122 is about 6488.6147982447. The cubic root of 42102122 is about 347.8841656581.

Adding to 42102122 its reverse (22120124), we get a palindrome (64222246).

It can be divided in two parts, 42102 and 122, that added together give a palindrome (42224).

The spelling of 42102122 in words is "forty-two million, one hundred two thousand, one hundred twenty-two".