121222010 has 48 divisors (see below), whose sum is σ = 270055296. Its totient is φ = 38361024.

The previous prime is 121222007. The next prime is 121222037. The reversal of 121222010 is 10222121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121221982 and 121222000.

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 23 ways as a sum of consecutive naturals, for example, 6707 + ... + 16953.

It is an arithmetic number, because the mean of its divisors is an integer number (5626152).

Almost surely, 2^121222010 is an apocalyptic number.

121222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222010 is an abundant number, since it is smaller than the sum of its proper divisors (148833286).

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

121222010 is a wasteful number, since it uses less digits than its factorization.

121222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287 (or 10274 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121222010 is about 11010.0867389862. The cubic root of 121222010 is about 494.9110611219.

Adding to 121222010 its reverse (10222121), we get a palindrome (131444131).

The spelling of 121222010 in words is "one hundred twenty-one million, two hundred twenty-two thousand, ten".