121200030210 has 64 divisors (see below), whose sum is σ = 332462363904. Its totient is φ = 27700531200.

The previous prime is 121200030191. The next prime is 121200030227. The reversal of 121200030210 is 12030002121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4320630 + ... + 4348590.

It is an arithmetic number, because the mean of its divisors is an integer number (5194724436).

Almost surely, 2^121200030210 is an apocalyptic number.

121200030210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200030210 is an abundant number, since it is smaller than the sum of its proper divisors (211262333694).

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

121200030210 is a wasteful number, since it uses less digits than its factorization.

121200030210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48619.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121200030210 its reverse (12030002121), we get a palindrome (133230032331).

The spelling of 121200030210 in words is "one hundred twenty-one billion, two hundred million, thirty thousand, two hundred ten".