2211221102042 has 8 divisors (see below), whose sum is σ = 3316838620032. Its totient is φ = 1105608228700.

The previous prime is 2211221102011. The next prime is 2211221102053. The reversal of 2211221102042 is 2402011221122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510167 + ... + 2163957.

It is an arithmetic number, because the mean of its divisors is an integer number (414604827504).

Almost surely, 2^{2211221102042} is an apocalyptic number.

2211221102042 is a deficient number, since it is larger than the sum of its proper divisors (1105617517990).

2211221102042 is a wasteful number, since it uses less digits than its factorization.

2211221102042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322324.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2211221102042 its reverse (2402011221122), we get a palindrome (4613232323164).

The spelling of 2211221102042 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred two thousand, forty-two".