222111220201012 has 24 divisors (see below), whose sum is σ = 388780959326760. Its totient is φ = 111030947448960.

The previous prime is 222111220201001. The next prime is 222111220201037. The reversal of 222111220201012 is 210102022111222.

It can be written as a sum of positive squares in 4 ways, for example, as 45659157208336 + 176452062992676 = 6757156^2 + 13283526^2 .

It is a super-2 number, since 2×222111220201012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755258814 + ... + 755552842.

It is an arithmetic number, because the mean of its divisors is an integer number (16199206638615).

Almost surely, 2^{222111220201012} is an apocalyptic number.

It is an amenable number.

222111220201012 is a deficient number, since it is larger than the sum of its proper divisors (166669739125748).

222111220201012 is a wasteful number, since it uses less digits than its factorization.

222111220201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335331 (or 335329 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222111220201012 its reverse (210102022111222), we get a palindrome (432213242312234).

The spelling of 222111220201012 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred twenty million, two hundred one thousand, twelve".