122642030 has 16 divisors (see below), whose sum is σ = 252292320. Its totient is φ = 42048672.

The previous prime is 122642021. The next prime is 122642033. The reversal of 122642030 is 30246221.

It is a junction number, because it is equal to n+sod(n) for n = 122641993 and 122642011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122642033) 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, 875945 + ... + 876084.

It is an arithmetic number, because the mean of its divisors is an integer number (15768270).

Almost surely, 2^122642030 is an apocalyptic number.

122642030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122642030 is an abundant number, since it is smaller than the sum of its proper divisors (129650290).

122642030 is a wasteful number, since it uses less digits than its factorization.

122642030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752043.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 122642030 is about 11074.3862132400. The cubic root of 122642030 is about 496.8360612129.

Adding to 122642030 its reverse (30246221), we get a palindrome (152888251).

The spelling of 122642030 in words is "one hundred twenty-two million, six hundred forty-two thousand, thirty".