2111822354442 has 16 divisors (see below), whose sum is σ = 4369287630240. Its totient is φ = 679666964592.

The previous prime is 2111822354437. The next prime is 2111822354459. The reversal of 2111822354442 is 2444532281112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111822354442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6068454868 + ... + 6068455215.

It is an arithmetic number, because the mean of its divisors is an integer number (273080476890).

Almost surely, 2^{2111822354442} is an apocalyptic number.

2111822354442 is an abundant number, since it is smaller than the sum of its proper divisors (2257465275798).

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

2111822354442 is a wasteful number, since it uses less digits than its factorization.

2111822354442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136910117.

The product of its digits is 122880, while the sum is 39.

The spelling of 2111822354442 in words is "two trillion, one hundred eleven billion, eight hundred twenty-two million, three hundred fifty-four thousand, four hundred forty-two".