2102224020042 has 16 divisors (see below), whose sum is σ = 4213081409472. Its totient is φ = 699302445120.

The previous prime is 2102224020011. The next prime is 2102224020047. The reversal of 2102224020042 is 2400204222012.

It is not an unprimeable number, because it can be changed into a prime (2102224020047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359720559 + ... + 359726402.

It is an arithmetic number, because the mean of its divisors is an integer number (263317588092).

Almost surely, 2^{2102224020042} is an apocalyptic number.

2102224020042 is an abundant number, since it is smaller than the sum of its proper divisors (2110857389430).

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

2102224020042 is a wasteful number, since it uses less digits than its factorization.

2102224020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719447453.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 2102224020042 its reverse (2400204222012), we get a palindrome (4502428242054).

The spelling of 2102224020042 in words is "two trillion, one hundred two billion, two hundred twenty-four million, twenty thousand, forty-two".