222551223512 has 16 divisors (see below), whose sum is σ = 417338934000. Its totient is φ = 111260841120.

The previous prime is 222551223467. The next prime is 222551223523. The reversal of 222551223512 is 215322155222.

It is a super-2 number, since 2×222551223512² (a number of 23 digits) contains 22 as substring.

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, 1782164 + ... + 1902947.

It is an arithmetic number, because the mean of its divisors is an integer number (26083683375).

Almost surely, 2^222551223512 is an apocalyptic number.

It is an amenable number.

222551223512 is a deficient number, since it is larger than the sum of its proper divisors (194787710488).

222551223512 is a wasteful number, since it uses less digits than its factorization.

222551223512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692666 (or 3692662 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

Adding to 222551223512 its reverse (215322155222), we get a palindrome (437873378734).

The spelling of 222551223512 in words is "two hundred twenty-two billion, five hundred fifty-one million, two hundred twenty-three thousand, five hundred twelve".