121000010 has 16 divisors (see below), whose sum is σ = 227270016. Its totient is φ = 46295568.

The previous prime is 121000003. The next prime is 121000049. The reversal of 121000010 is 10000121.

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 = 120999958 and 121000003.

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, 262814 + ... + 263273.

It is an arithmetic number, because the mean of its divisors is an integer number (14204376).

Almost surely, 2^121000010 is an apocalyptic number.

121000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000010 is a deficient number, since it is larger than the sum of its proper divisors (106270006).

121000010 is a wasteful number, since it uses less digits than its factorization.

121000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526117.

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

The square root of 121000010 is about 11000.0004545454. Note that the first 3 decimals coincide. The cubic root of 121000010 is about 494.6087579505.

Adding to 121000010 its reverse (10000121), we get a palindrome (131000131).

The spelling of 121000010 in words is "one hundred twenty-one million, ten", and thus it is an aban number.