121202002010 has 24 divisors (see below), whose sum is σ = 231751653660. Its totient is φ = 45628987904.

The previous prime is 121202001989. The next prime is 121202002067. The reversal of 121202002010 is 10200202121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 55785243721 + 65416758289 = 236189^2 + 255767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121202001982 and 121202002000.

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 11 ways as a sum of consecutive naturals, for example, 20966315 + ... + 20972094.

Almost surely, 2^121202002010 is an apocalyptic number.

121202002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202002010 is a deficient number, since it is larger than the sum of its proper divisors (110549651650).

121202002010 is a wasteful number, since it uses less digits than its factorization.

121202002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938450 (or 41938433 counting only the distinct ones).

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

Adding to 121202002010 its reverse (10200202121), we get a palindrome (131402204131).

The spelling of 121202002010 in words is "one hundred twenty-one billion, two hundred two million, two thousand, ten".