121020122 has 8 divisors (see below), whose sum is σ = 181578036. Its totient is φ = 60494112.

The previous prime is 121020113. The next prime is 121020131. The reversal of 121020122 is 221020121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121020113) and next prime (121020131).

It can be written as a sum of positive squares in 2 ways, for example, as 108139201 + 12880921 = 10399^2 + 3589^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 7568 + ... + 17300.

Almost surely, 2^121020122 is an apocalyptic number.

121020122 is a deficient number, since it is larger than the sum of its proper divisors (60557914).

121020122 is an equidigital number, since it uses as much as digits as its factorization.

121020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15952.

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

The square root of 121020122 is about 11000.9145983414. The cubic root of 121020122 is about 494.6361602078.

Adding to 121020122 its reverse (221020121), we get a palindrome (342040243).

Subtracting 121020122 from its reverse (221020121), we obtain a palindrome (99999999).

The spelling of 121020122 in words is "one hundred twenty-one million, twenty thousand, one hundred twenty-two".