1212101101010 has 128 divisors (see below), whose sum is σ = 2480755507200. Its totient is φ = 423919077120.

The previous prime is 1212101100949. The next prime is 1212101101019. The reversal of 1212101101010 is 101011012121.

It is a junction number, because it is equal to n+sod(n) for n = 1212101100982 and 1212101101000.

It is not an unprimeable number, because it can be changed into a prime (1212101101019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305544047 + ... + 305548013.

It is an arithmetic number, because the mean of its divisors is an integer number (19380902400).

Almost surely, 2^{1212101101010} is an apocalyptic number.

1212101101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212101101010 is an abundant number, since it is smaller than the sum of its proper divisors (1268654406190).

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

1212101101010 is a wasteful number, since it uses less digits than its factorization.

1212101101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1212101101010 its reverse (101011012121), we get a palindrome (1313112113131).

The spelling of 1212101101010 in words is "one trillion, two hundred twelve billion, one hundred one million, one hundred one thousand, ten".