121211232010 has 128 divisors (see below), whose sum is σ = 244210982400. Its totient is φ = 42949509120.

The previous prime is 121211231983. The next prime is 121211232011. The reversal of 121211232010 is 10232112121.

It is not an unprimeable number, because it can be changed into a prime (121211232011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 276107371 + ... + 276107809.

It is an arithmetic number, because the mean of its divisors is an integer number (1907898300).

Almost surely, 2^121211232010 is an apocalyptic number.

121211232010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121211232010 is an abundant number, since it is smaller than the sum of its proper divisors (122999750390).

121211232010 is a wasteful number, since it uses less digits than its factorization.

121211232010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121211232010 its reverse (10232112121), we get a palindrome (131443344131).

The spelling of 121211232010 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred thirty-two thousand, ten".