1211220043214 has 16 divisors (see below), whose sum is σ = 1820705851296. Its totient is φ = 604318730400.

The previous prime is 1211220043177. The next prime is 1211220043219. The reversal of 1211220043214 is 4123400221121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211220043214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211220043219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3691319 + ... + 4006029.

It is an arithmetic number, because the mean of its divisors is an integer number (113794115706).

Almost surely, 2^{1211220043214} is an apocalyptic number.

1211220043214 is a deficient number, since it is larger than the sum of its proper divisors (609485808082).

1211220043214 is a wasteful number, since it uses less digits than its factorization.

1211220043214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318811.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1211220043214 its reverse (4123400221121), we get a palindrome (5334620264335).

The spelling of 1211220043214 in words is "one trillion, two hundred eleven billion, two hundred twenty million, forty-three thousand, two hundred fourteen".