1222214122221 has 8 divisors (see below), whose sum is σ = 1633723664544. Its totient is φ = 812756997360.

The previous prime is 1222214122219. The next prime is 1222214122237.

1222214122221 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 1222214122221 - 2¹ = 1222214122219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222214122191 and 1222214122200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222214122201) 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, 513102975 + ... + 513105356.

It is an arithmetic number, because the mean of its divisors is an integer number (204215458068).

Almost surely, 2^{1222214122221} is an apocalyptic number.

It is an amenable number.

1222214122221 is a deficient number, since it is larger than the sum of its proper divisors (411509542323).

1222214122221 is a wasteful number, since it uses less digits than its factorization.

1222214122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026208731.

The product of its digits is 1024, while the sum is 24.

The spelling of 1222214122221 in words is "one trillion, two hundred twenty-two billion, two hundred fourteen million, one hundred twenty-two thousand, two hundred twenty-one".