222012243144 has 64 divisors (see below), whose sum is σ = 628336569600. Its totient is φ = 72607773888.

The previous prime is 222012243137. The next prime is 222012243151. The reversal of 222012243144 is 441342210222.

It is a happy number.

222012243144 is a `hidden beast` number, since 2 + 2 + 201 + 22 + 431 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (222012243137) and next prime (222012243151).

It is a super-3 number, since 3×222012243144³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9685104 + ... + 9707999.

It is an arithmetic number, because the mean of its divisors is an integer number (9817758900).

Almost surely, 2^222012243144 is an apocalyptic number.

222012243144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222012243144 is an abundant number, since it is smaller than the sum of its proper divisors (406324326456).

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

222012243144 is a wasteful number, since it uses less digits than its factorization.

222012243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19393171 (or 19393161 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 222012243144 its reverse (441342210222), we get a palindrome (663354453366).

The spelling of 222012243144 in words is "two hundred twenty-two billion, twelve million, two hundred forty-three thousand, one hundred forty-four".