121331122210 has 16 divisors (see below), whose sum is σ = 221160528000. Its totient is φ = 47918113776.

The previous prime is 121331122207. The next prime is 121331122217. The reversal of 121331122210 is 12221133121.

It is not an unprimeable number, because it can be changed into a prime (121331122217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76791060 + ... + 76792639.

It is an arithmetic number, because the mean of its divisors is an integer number (13822533000).

Almost surely, 2^121331122210 is an apocalyptic number.

121331122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121331122210 is a deficient number, since it is larger than the sum of its proper divisors (99829405790).

121331122210 is a wasteful number, since it uses less digits than its factorization.

121331122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153583785.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121331122210 its reverse (12221133121), we get a palindrome (133552255331).

The spelling of 121331122210 in words is "one hundred twenty-one billion, three hundred thirty-one million, one hundred twenty-two thousand, two hundred ten".