121232200210 has 48 divisors (see below), whose sum is σ = 239964438168. Its totient is φ = 44065134080.

The previous prime is 121232200189. The next prime is 121232200231. The reversal of 121232200210 is 12002232121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121232200189) and next prime (121232200231).

It can be written as a sum of positive squares in 4 ways, for example, as 102654237609 + 18577962601 = 320397^2 + 136301^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2903844 + ... + 2945296.

Almost surely, 2^121232200210 is an apocalyptic number.

121232200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121232200210 is a deficient number, since it is larger than the sum of its proper divisors (118732237958).

121232200210 is a wasteful number, since it uses less digits than its factorization.

121232200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43899 (or 43888 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121232200210 its reverse (12002232121), we get a palindrome (133234432331).

The spelling of 121232200210 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred thousand, two hundred ten".