102001121121010 has 16 divisors (see below), whose sum is σ = 183747849667200. Its totient is φ = 40768041415216.

The previous prime is 102001121120999. The next prime is 102001121121143. The reversal of 102001121121010 is 10121121100201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4050865930 + ... + 4050891109.

It is an arithmetic number, because the mean of its divisors is an integer number (11484240604200).

Almost surely, 2^{102001121121010} is an apocalyptic number.

102001121121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001121121010 is a deficient number, since it is larger than the sum of its proper divisors (81746728546190).

102001121121010 is a wasteful number, since it uses less digits than its factorization.

102001121121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101758305.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102001121121010 its reverse (10121121100201), we get a palindrome (112122242221211).

The spelling of 102001121121010 in words is "one hundred two trillion, one billion, one hundred twenty-one million, one hundred twenty-one thousand, ten".