1212102042030 has 96 divisors (see below), whose sum is σ = 3441884760288. Its totient is φ = 293507654400.

The previous prime is 1212102042029. The next prime is 1212102042043. The reversal of 1212102042030 is 302402012121.

It is a happy number.

1212102042030 is a `hidden beast` number, since 1 + 2 + 1 + 210 + 2 + 0 + 420 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1212102041994 and 1212102042012.

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, 170200 + ... + 1566260.

It is an arithmetic number, because the mean of its divisors is an integer number (35852966253).

Almost surely, 2^{1212102042030} is an apocalyptic number.

1212102042030 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 1212102042030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720942380144).

1212102042030 is an abundant number, since it is smaller than the sum of its proper divisors (2229782718258).

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

1212102042030 is a wasteful number, since it uses less digits than its factorization.

1212102042030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396962 (or 1396959 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1212102042030 its reverse (302402012121), we get a palindrome (1514504054151).

The spelling of 1212102042030 in words is "one trillion, two hundred twelve billion, one hundred two million, forty-two thousand, thirty".