121232222010 has 144 divisors (see below), whose sum is σ = 322733287656. Its totient is φ = 31566744576.

The previous prime is 121232222003. The next prime is 121232222029. The reversal of 121232222010 is 10222232121.

121232222010 is a `hidden beast` number, since 121 + 2 + 322 + 220 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 104066243649 + 17165978361 = 322593^2 + 131019^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 330332847 + ... + 330333213.

Almost surely, 2^121232222010 is an apocalyptic number.

121232222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121232222010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161366643828).

121232222010 is an abundant number, since it is smaller than the sum of its proper divisors (201501065646).

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

121232222010 is a wasteful number, since it uses less digits than its factorization.

121232222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121232222010 its reverse (10222232121), we get a palindrome (131454454131).

The spelling of 121232222010 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred twenty-two thousand, ten".