121212122020010 has 32 divisors (see below), whose sum is σ = 249354436901760. Its totient is φ = 41557810853952.

The previous prime is 121212122019991. The next prime is 121212122020013. The reversal of 121212122020010 is 10020221212121.

It is not an unprimeable number, because it can be changed into a prime (121212122020013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8490404 + ... + 17734463.

It is an arithmetic number, because the mean of its divisors is an integer number (7792326153180).

Almost surely, 2^{121212122020010} is an apocalyptic number.

121212122020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121212122020010 is an abundant number, since it is smaller than the sum of its proper divisors (128142314881750).

121212122020010 is a wasteful number, since it uses less digits than its factorization.

121212122020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26290910.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121212122020010 its reverse (10020221212121), we get a palindrome (131232343232131).

The spelling of 121212122020010 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred twenty-two million, twenty thousand, ten".