12211210101210 has 128 divisors (see below), whose sum is σ = 29736515128320. Its totient is φ = 3208891662336.

The previous prime is 12211210101149. The next prime is 12211210101221. The reversal of 12211210101210 is 1210101211221.

It is a happy number.

12211210101210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211210101210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12211210101210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1779278239 + ... + 1779285101.

It is an arithmetic number, because the mean of its divisors is an integer number (232316524440).

Almost surely, 2^{12211210101210} is an apocalyptic number.

12211210101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211210101210 is an abundant number, since it is smaller than the sum of its proper divisors (17525305027110).

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

12211210101210 is a wasteful number, since it uses less digits than its factorization.

12211210101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12211210101210 its reverse (1210101211221), we get a palindrome (13421311312431).

The spelling of 12211210101210 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, one hundred one thousand, two hundred ten".