22100202021042 has 24 divisors (see below), whose sum is σ = 47901317422140. Its totient is φ = 7364034564480.

The previous prime is 22100202021041. The next prime is 22100202021137. The reversal of 22100202021042 is 24012020200122.

22100202021042 is a `hidden beast` number, since 2 + 210 + 0 + 202 + 0 + 210 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22073374529361 + 26827491681 = 4698231^2 + 163791^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22100202021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224903059 + ... + 225001302.

Almost surely, 2^{22100202021042} is an apocalyptic number.

22100202021042 is an abundant number, since it is smaller than the sum of its proper divisors (25801115401098).

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

22100202021042 is a wasteful number, since it uses less digits than its factorization.

22100202021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449907098 (or 449907095 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22100202021042 its reverse (24012020200122), we get a palindrome (46112222221164).

The spelling of 22100202021042 in words is "twenty-two trillion, one hundred billion, two hundred two million, twenty-one thousand, forty-two".