121201101010010 has 32 divisors (see below), whose sum is σ = 257925495749760. Its totient is φ = 40121743781952.

The previous prime is 121201101009991. The next prime is 121201101010037. The reversal of 121201101010010 is 10010101102121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121201101009973 and 121201101010000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29852485904 + ... + 29852489963.

It is an arithmetic number, because the mean of its divisors is an integer number (8060171742180).

Almost surely, 2^{121201101010010} is an apocalyptic number.

121201101010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201101010010 is an abundant number, since it is smaller than the sum of its proper divisors (136724394739750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201101010010 is a wasteful number, since it uses less digits than its factorization.

121201101010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59704975910.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121201101010010 its reverse (10010101102121), we get a palindrome (131211202112131).

The spelling of 121201101010010 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred one million, ten thousand, ten".