2221112002122 has 64 divisors (see below), whose sum is σ = 5486948920320. Its totient is φ = 661373294400.

The previous prime is 2221112002099. The next prime is 2221112002133. The reversal of 2221112002122 is 2212002111222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2221112002095 and 2221112002104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51010129 + ... + 51053652.

It is an arithmetic number, because the mean of its divisors is an integer number (85733576880).

Almost surely, 2^{2221112002122} is an apocalyptic number.

2221112002122 is an abundant number, since it is smaller than the sum of its proper divisors (3265836918198).

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

2221112002122 is a wasteful number, since it uses less digits than its factorization.

2221112002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102063836 (or 102063830 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221112002122 its reverse (2212002111222), we get a palindrome (4433114113344).

The spelling of 2221112002122 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, two thousand, one hundred twenty-two".