121221052035 has 16 divisors (see below), whose sum is σ = 194094160800. Its totient is φ = 64604401920.

The previous prime is 121221052009. The next prime is 121221052037. The reversal of 121221052035 is 530250122121.

It is not a de Polignac number, because 121221052035 - 2⁵ = 121221052003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121221051996 and 121221052014.

It is not an unprimeable number, because it can be changed into a prime (121221052037) 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 15 ways as a sum of consecutive naturals, for example, 2905210 + ... + 2946639.

It is an arithmetic number, because the mean of its divisors is an integer number (12130885050).

Almost surely, 2^121221052035 is an apocalyptic number.

121221052035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121221052035 is a deficient number, since it is larger than the sum of its proper divisors (72873108765).

121221052035 is a wasteful number, since it uses less digits than its factorization.

121221052035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853238.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 121221052035 its reverse (530250122121), we get a palindrome (651471174156).

The spelling of 121221052035 in words is "one hundred twenty-one billion, two hundred twenty-one million, fifty-two thousand, thirty-five".