1211212204310 has 16 divisors (see below), whose sum is σ = 2180217800016. Its totient is φ = 484476919008.

The previous prime is 1211212204303. The next prime is 1211212204331. The reversal of 1211212204310 is 134022121121.

It is a super-2 number, since 2×1211212204310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335657 + ... + 1592196.

It is an arithmetic number, because the mean of its divisors is an integer number (136263612501).

Almost surely, 2^{1211212204310} is an apocalyptic number.

1211212204310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211212204310 is a deficient number, since it is larger than the sum of its proper divisors (969005595706).

1211212204310 is a wasteful number, since it uses less digits than its factorization.

1211212204310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990687.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1211212204310 its reverse (134022121121), we get a palindrome (1345234325431).

The spelling of 1211212204310 in words is "one trillion, two hundred eleven billion, two hundred twelve million, two hundred four thousand, three hundred ten".