1221213022214 has 8 divisors (see below), whose sum is σ = 1835027625288. Its totient is φ = 609537147120.

The previous prime is 1221213022207. The next prime is 1221213022279. The reversal of 1221213022214 is 4122203121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1221213022214² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1221213022214.

It is a congruent number.

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, 534680567 + ... + 534682850.

It is an arithmetic number, because the mean of its divisors is an integer number (229378453161).

Almost surely, 2^{1221213022214} is an apocalyptic number.

1221213022214 is a deficient number, since it is larger than the sum of its proper divisors (613814603074).

1221213022214 is a wasteful number, since it uses less digits than its factorization.

1221213022214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069363990.

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

Adding to 1221213022214 its reverse (4122203121221), we get a palindrome (5343416143435).

The spelling of 1221213022214 in words is "one trillion, two hundred twenty-one billion, two hundred thirteen million, twenty-two thousand, two hundred fourteen".