222120220001100 has 72 divisors (see below), whose sum is σ = 643286382036480. Its totient is φ = 59175049865280.

The previous prime is 222120220001087. The next prime is 222120220001231. The reversal of 222120220001100 is 1100022021222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222120220001100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355992792 + ... + 356616191.

It is an arithmetic number, because the mean of its divisors is an integer number (8934533083840).

Almost surely, 2^{222120220001100} is an apocalyptic number.

222120220001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120220001100 is an abundant number, since it is smaller than the sum of its proper divisors (421166162035380).

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

222120220001100 is a wasteful number, since it uses less digits than its factorization.

222120220001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712610039 (or 712610032 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222120220001100 its reverse (1100022021222), we get a palindrome (223220242022322).

The spelling of 222120220001100 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty million, one thousand, one hundred".