121020212122 has 8 divisors (see below), whose sum is σ = 183327648372. Its totient is φ = 59910996000.

The previous prime is 121020212111. The next prime is 121020212129. The reversal of 121020212122 is 221212020121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80502145441 + 40518066681 = 283729^2 + 201291^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121020212096 and 121020212105.

It is not an unprimeable number, because it can be changed into a prime (121020212129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299554779 + ... + 299555182.

Almost surely, 2^121020212122 is an apocalyptic number.

121020212122 is a deficient number, since it is larger than the sum of its proper divisors (62307436250).

121020212122 is a wasteful number, since it uses less digits than its factorization.

121020212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599110064.

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

Adding to 121020212122 its reverse (221212020121), we get a palindrome (342232232243).

The spelling of 121020212122 in words is "one hundred twenty-one billion, twenty million, two hundred twelve thousand, one hundred twenty-two".