121022212210 has 8 divisors (see below), whose sum is σ = 217839981996. Its totient is φ = 48408884880.

The previous prime is 121022212189. The next prime is 121022212217. The reversal of 121022212210 is 12212220121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120958579681 + 63632529 = 347791^2 + 7977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121022212217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6051110601 + ... + 6051110620.

Almost surely, 2^121022212210 is an apocalyptic number.

121022212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121022212210 is a deficient number, since it is larger than the sum of its proper divisors (96817769786).

121022212210 is a wasteful number, since it uses less digits than its factorization.

121022212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102221228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022212210 its reverse (12212220121), we get a palindrome (133234432331).

The spelling of 121022212210 in words is "one hundred twenty-one billion, twenty-two million, two hundred twelve thousand, two hundred ten".