20022040442042 has 16 divisors (see below), whose sum is σ = 31809094687080. Its totient is φ = 9419356412928.

The previous prime is 20022040442023. The next prime is 20022040442051. The reversal of 20022040442042 is 24024404022002.

It can be written as a sum of positive squares in 4 ways, for example, as 19523151087001 + 498889355041 = 4418501^2 + 706321^2 .

It is a super-2 number, since 2×20022040442042² (a number of 27 digits) contains 22 as substring.

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, 86766383 + ... + 86996834.

Almost surely, 2^{20022040442042} is an apocalyptic number.

20022040442042 is a deficient number, since it is larger than the sum of its proper divisors (11787054245038).

20022040442042 is a wasteful number, since it uses less digits than its factorization.

20022040442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173766625.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20022040442042 its reverse (24024404022002), we get a palindrome (44046444464044).

The spelling of 20022040442042 in words is "twenty trillion, twenty-two billion, forty million, four hundred forty-two thousand, forty-two".