1167022221 has 16 divisors (see below), whose sum is σ = 1566544320. Its totient is φ = 772773120.

The previous prime is 1167022169. The next prime is 1167022253. The reversal of 1167022221 is 1222207611.

1167022221 = 2246² + 2247² + ... + 2456².

It is not a de Polignac number, because 1167022221 - 2¹⁰ = 1167021197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1167022191 and 1167022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167022121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373815 + ... + 376923.

It is an arithmetic number, because the mean of its divisors is an integer number (97909020).

Almost surely, 2^1167022221 is an apocalyptic number.

It is an amenable number.

1167022221 is a deficient number, since it is larger than the sum of its proper divisors (399522099).

1167022221 is a wasteful number, since it uses less digits than its factorization.

1167022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1167022221 is about 34161.7069392031. The cubic root of 1167022221 is about 1052.8335320341.

Adding to 1167022221 its reverse (1222207611), we get a palindrome (2389229832).

The spelling of 1167022221 in words is "one billion, one hundred sixty-seven million, twenty-two thousand, two hundred twenty-one".