1212210212120 has 64 divisors (see below), whose sum is σ = 2872807020000. Its totient is φ = 459078617088.

The previous prime is 1212210212107. The next prime is 1212210212131. The reversal of 1212210212120 is 212120122121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731456 + ... + 1720304.

Almost surely, 2^{1212210212120} is an apocalyptic number.

1212210212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212210212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436403510000).

1212210212120 is an abundant number, since it is smaller than the sum of its proper divisors (1660596807880).

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

1212210212120 is a wasteful number, since it uses less digits than its factorization.

1212210212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990492 (or 990488 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212210212120 its reverse (212120122121), we get a palindrome (1424330334241).

The spelling of 1212210212120 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred twelve thousand, one hundred twenty".