1211200212310 has 48 divisors (see below), whose sum is σ = 2420101360656. Its totient is φ = 436075640000.

The previous prime is 1211200212281. The next prime is 1211200212311. The reversal of 1211200212310 is 132120021121.

It is a super-2 number, since 2×1211200212310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211200212311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4833196 + ... + 5077615.

It is an arithmetic number, because the mean of its divisors is an integer number (50418778347).

Almost surely, 2^{1211200212310} is an apocalyptic number.

1211200212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211200212310 is a deficient number, since it is larger than the sum of its proper divisors (1208901148346).

1211200212310 is a wasteful number, since it uses less digits than its factorization.

1211200212310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910941 (or 9910930 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1211200212310 its reverse (132120021121), we get a palindrome (1343320233431).

The spelling of 1211200212310 in words is "one trillion, two hundred eleven billion, two hundred million, two hundred twelve thousand, three hundred ten".