121005006 has 16 divisors (see below), whose sum is σ = 243496704. Its totient is φ = 40087224.

The previous prime is 121004999. The next prime is 121005013. The reversal of 121005006 is 600500121.

It is an interprime number because it is at equal distance from previous prime (121004999) and next prime (121005013).

It is a super-2 number, since 2×121005006² = 29284422954120072, which contains 22 as substring.

It is a congruent number.

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, 60886 + ... + 62841.

It is an arithmetic number, because the mean of its divisors is an integer number (15218544).

Almost surely, 2^121005006 is an apocalyptic number.

121005006 is an abundant number, since it is smaller than the sum of its proper divisors (122491698).

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

121005006 is a wasteful number, since it uses less digits than its factorization.

121005006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123895.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 121005006 is about 11000.2275431011. The cubic root of 121005006 is about 494.6155651988.

Adding to 121005006 its reverse (600500121), we get a palindrome (721505127).

The spelling of 121005006 in words is "one hundred twenty-one million, five thousand, six".