222222201001100 has 36 divisors (see below), whose sum is σ = 482694480190608. Its totient is φ = 88801819752000.

The previous prime is 222222201001067. The next prime is 222222201001139. The reversal of 222222201001100 is 1100102222222.

It is a happy number.

It is a super-3 number, since 3×222222201001100³ (a number of 44 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1088155496 + ... + 1088359695.

Almost surely, 2^{222222201001100} is an apocalyptic number.

222222201001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222201001100 is an abundant number, since it is smaller than the sum of its proper divisors (260472279189508).

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

222222201001100 is a wasteful number, since it uses less digits than its factorization.

222222201001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176516226 (or 2176516219 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222222201001100 its reverse (1100102222222), we get a palindrome (223322303223322).

The spelling of 222222201001100 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred one million, one thousand, one hundred".