1212210201280 has 224 divisors, whose sum is σ = 3348423364608. Its totient is φ = 414313574400.

The previous prime is 1212210201277. The next prime is 1212210201281. The reversal of 1212210201280 is 821020122121.

It is a super-2 number, since 2×1212210201280² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212210201281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2761735 + ... + 3170425.

It is an arithmetic number, because the mean of its divisors is an integer number (14948318592).

Almost surely, 2^{1212210201280} is an apocalyptic number.

1212210201280 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 1212210201280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674211682304).

1212210201280 is an abundant number, since it is smaller than the sum of its proper divisors (2136213163328).

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

1212210201280 is a wasteful number, since it uses less digits than its factorization.

1212210201280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408775 (or 408765 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 1212210201280 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred one thousand, two hundred eighty".