1210920001224 has 16 divisors (see below), whose sum is σ = 3027300003120. Its totient is φ = 403640000400.

The previous prime is 1210920001201. The next prime is 1210920001303. The reversal of 1210920001224 is 4221000290121.

It is a super-2 number, since 2×1210920001224² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50455000051 = 1210920001224 / (1 + 2 + 1 + 0 + 9 + 2 + 0 + 0 + 0 + 1 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 1210920001194 and 1210920001203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25227500002 + ... + 25227500049.

It is an arithmetic number, because the mean of its divisors is an integer number (189206250195).

Almost surely, 2^{1210920001224} is an apocalyptic number.

It is an amenable number.

1210920001224 is an abundant number, since it is smaller than the sum of its proper divisors (1816380001896).

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

1210920001224 is a wasteful number, since it uses less digits than its factorization.

1210920001224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50455000060 (or 50455000056 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 1210920001224 its reverse (4221000290121), we get a palindrome (5431920291345).

The spelling of 1210920001224 in words is "one trillion, two hundred ten billion, nine hundred twenty million, one thousand, two hundred twenty-four".