222148773 has 24 divisors (see below), whose sum is σ = 400061376. Its totient is φ = 115401600.

The previous prime is 222148769. The next prime is 222148807. The reversal of 222148773 is 377841222.

It is not a de Polignac number, because 222148773 - 2² = 222148769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222148723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159588 + ... + 160973.

It is an arithmetic number, because the mean of its divisors is an integer number (16669224).

Almost surely, 2^222148773 is an apocalyptic number.

It is an amenable number.

222148773 is a deficient number, since it is larger than the sum of its proper divisors (177912603).

222148773 is a wasteful number, since it uses less digits than its factorization.

222148773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320585 (or 320582 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 222148773 is about 14904.6560845932. The cubic root of 222148773 is about 605.6401238767.

Adding to 222148773 its reverse (377841222), we get a palindrome (599989995).

The spelling of 222148773 in words is "two hundred twenty-two million, one hundred forty-eight thousand, seven hundred seventy-three".