121001424202 has 16 divisors (see below), whose sum is σ = 184263295392. Its totient is φ = 59580837360.

The previous prime is 121001424197. The next prime is 121001424217. The reversal of 121001424202 is 202424100121.

It is a self number, because there is not a number n which added to its sum of digits gives 121001424202.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 353773 + ... + 605935.

It is an arithmetic number, because the mean of its divisors is an integer number (11516455962).

Almost surely, 2^121001424202 is an apocalyptic number.

121001424202 is a deficient number, since it is larger than the sum of its proper divisors (63261871190).

121001424202 is a wasteful number, since it uses less digits than its factorization.

121001424202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255813.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121001424202 its reverse (202424100121), we get a palindrome (323425524323).

The spelling of 121001424202 in words is "one hundred twenty-one billion, one million, four hundred twenty-four thousand, two hundred two".