1212210322130 has 24 divisors (see below), whose sum is σ = 2302863826572. Its totient is φ = 459363910176.

The previous prime is 1212210322093. The next prime is 1212210322139. The reversal of 1212210322130 is 312230122121.

It can be written as a sum of positive squares in 2 ways, for example, as 1183737472009 + 28472850121 = 1087997^2 + 168739^2 .

It is not an unprimeable number, because it can be changed into a prime (1212210322139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167892557 + ... + 167899776.

Almost surely, 2^{1212210322130} is an apocalyptic number.

1212210322130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212210322130 is a deficient number, since it is larger than the sum of its proper divisors (1090653504442).

1212210322130 is a wasteful number, since it uses less digits than its factorization.

1212210322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335792378 (or 335792359 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1212210322130 its reverse (312230122121), we get a palindrome (1524440444251).

The spelling of 1212210322130 in words is "one trillion, two hundred twelve billion, two hundred ten million, three hundred twenty-two thousand, one hundred thirty".