1212101122110 has 16 divisors (see below), whose sum is σ = 2909042693136. Its totient is φ = 323226965888.

The previous prime is 1212101122103. The next prime is 1212101122159. The reversal of 1212101122110 is 112211012121.

It is a happy number.

It is a super-2 number, since 2×1212101122110² (a number of 25 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 1212101122110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20201685339 + ... + 20201685398.

It is an arithmetic number, because the mean of its divisors is an integer number (181815168321).

Almost surely, 2^{1212101122110} is an apocalyptic number.

1212101122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212101122110 is an abundant number, since it is smaller than the sum of its proper divisors (1696941571026).

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

1212101122110 is a wasteful number, since it uses less digits than its factorization.

1212101122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40403370747.

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

Adding to 1212101122110 its reverse (112211012121), we get a palindrome (1324312134231).

The spelling of 1212101122110 in words is "one trillion, two hundred twelve billion, one hundred one million, one hundred twenty-two thousand, one hundred ten".