121010010200 has 24 divisors (see below), whose sum is σ = 281348274180. Its totient is φ = 48404004000.

The previous prime is 121010010197. The next prime is 121010010203. The reversal of 121010010200 is 2010010121.

It is an interprime number because it is at equal distance from previous prime (121010010197) and next prime (121010010203).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010010203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302524826 + ... + 302525225.

Almost surely, 2^121010010200 is an apocalyptic number.

121010010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010010200 is an abundant number, since it is smaller than the sum of its proper divisors (160338263980).

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

121010010200 is a wasteful number, since it uses less digits than its factorization.

121010010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605050067 (or 605050058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 121010010200 its reverse (2010010121), we get a palindrome (123020020321).

The spelling of 121010010200 in words is "one hundred twenty-one billion, ten million, ten thousand, two hundred".