1210212240000 has 160 divisors (see below), whose sum is σ = 4016997774240. Its totient is φ = 322723200000.

The previous prime is 1210212239941. The next prime is 1210212240019. The reversal of 1210212240000 is 422120121.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×1210212240000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2281276 + ... + 2761275.

It is an arithmetic number, because the mean of its divisors is an integer number (25106236089).

Almost surely, 2^{1210212240000} is an apocalyptic number.

1210212240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210212240000 is an abundant number, since it is smaller than the sum of its proper divisors (2806785534240).

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

1210212240000 is an frugal number, since it uses more digits than its factorization.

1210212240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042588 (or 5042561 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1210212240000 its reverse (422120121), we get a palindrome (1210634360121).

The spelling of 1210212240000 in words is "one trillion, two hundred ten billion, two hundred twelve million, two hundred forty thousand".