121000000000010 has 16 divisors (see below), whose sum is σ = 217800133522272. Its totient is φ = 48399970328400.

The previous prime is 121000000000007. The next prime is 121000000000057. The reversal of 121000000000010 is 10000000000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 120999999999913 and 121000000000003.

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, 21721745 + ... + 26717675.

It is an arithmetic number, because the mean of its divisors is an integer number (13612508345142).

Almost surely, 2^{121000000000010} is an apocalyptic number.

121000000000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000000000010 is a deficient number, since it is larger than the sum of its proper divisors (96800133522262).

121000000000010 is a wasteful number, since it uses less digits than its factorization.

121000000000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417909.

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 121000000000010 its reverse (10000000000121), we get a palindrome (131000000000131).

The spelling of 121000000000010 in words is "one hundred twenty-one trillion, ten", and thus it is an aban number.