222215011512 has 64 divisors (see below), whose sum is σ = 598324315680. Its totient is φ = 68367777792.

The previous prime is 222215011507. The next prime is 222215011517. The reversal of 222215011512 is 215110512222.

It is an interprime number because it is at equal distance from previous prime (222215011507) and next prime (222215011517).

It is a super-2 number, since 2×222215011512² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222215011517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4548688 + ... + 4597280.

Almost surely, 2^222215011512 is an apocalyptic number.

It is an amenable number.

222215011512 is an abundant number, since it is smaller than the sum of its proper divisors (376109304168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222215011512 is a wasteful number, since it uses less digits than its factorization.

222215011512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63272 (or 63268 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 222215011512 its reverse (215110512222), we get a palindrome (437325523734).

The spelling of 222215011512 in words is "two hundred twenty-two billion, two hundred fifteen million, eleven thousand, five hundred twelve".