121000210121010 has 64 divisors (see below), whose sum is σ = 316805007717504. Its totient is φ = 29332971532800.

The previous prime is 121000210120961. The next prime is 121000210121093. The reversal of 121000210121010 is 10121012000121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21241830 + ... + 26328990.

It is an arithmetic number, because the mean of its divisors is an integer number (4950078245586).

Almost surely, 2^{121000210121010} is an apocalyptic number.

121000210121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000210121010 is an abundant number, since it is smaller than the sum of its proper divisors (195804797596494).

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

121000210121010 is a wasteful number, since it uses less digits than its factorization.

121000210121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159259.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000210121010 its reverse (10121012000121), we get a palindrome (131121222121131).

The spelling of 121000210121010 in words is "one hundred twenty-one trillion, two hundred ten million, one hundred twenty-one thousand, ten".