121212222201010 has 32 divisors (see below), whose sum is σ = 218237440186944. Its totient is φ = 48472570440000.

The previous prime is 121212222200893. The next prime is 121212222201013. The reversal of 121212222201010 is 10102222212121.

It is not an unprimeable number, because it can be changed into a prime (121212222201013) 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, 655459560 + ... + 655644460.

It is an arithmetic number, because the mean of its divisors is an integer number (6819920005842).

Almost surely, 2^{121212222201010} is an apocalyptic number.

121212222201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121212222201010 is a deficient number, since it is larger than the sum of its proper divisors (97025217985934).

121212222201010 is a wasteful number, since it uses less digits than its factorization.

121212222201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201210.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212222201010 its reverse (10102222212121), we get a palindrome (131314444413131).

The spelling of 121212222201010 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, ten".