121012221112010 has 16 divisors (see below), whose sum is σ = 217903916815200. Its totient is φ = 48386684264016.

The previous prime is 121012221111967. The next prime is 121012221112019. The reversal of 121012221112010 is 10211122210121.

It is a self number, because there is not a number n which added to its sum of digits gives 121012221112010.

It is not an unprimeable number, because it can be changed into a prime (121012221112019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275494680 + ... + 2275547859.

It is an arithmetic number, because the mean of its divisors is an integer number (13618994800950).

Almost surely, 2^{121012221112010} is an apocalyptic number.

121012221112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012221112010 is a deficient number, since it is larger than the sum of its proper divisors (96891695703190).

121012221112010 is a wasteful number, since it uses less digits than its factorization.

121012221112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551045205.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121012221112010 its reverse (10211122210121), we get a palindrome (131223343322131).

The spelling of 121012221112010 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty-one million, one hundred twelve thousand, ten".