1212222301110 has 96 divisors (see below), whose sum is σ = 3192205386240. Its totient is φ = 319114246464.

The previous prime is 1212222301093. The next prime is 1212222301153. The reversal of 1212222301110 is 111032222121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61328089 + ... + 61347851.

It is an arithmetic number, because the mean of its divisors is an integer number (33252139440).

Almost surely, 2^{1212222301110} is an apocalyptic number.

1212222301110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212222301110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596102693120).

1212222301110 is an abundant number, since it is smaller than the sum of its proper divisors (1979983085130).

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

1212222301110 is a wasteful number, since it uses less digits than its factorization.

1212222301110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28482 (or 28479 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1212222301110 its reverse (111032222121), we get a palindrome (1323254523231).

The spelling of 1212222301110 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, three hundred one thousand, one hundred ten".