20021200414433 has 2 divisors, whose sum is σ = 20021200414434. Its totient is φ = 20021200414432.

The previous prime is 20021200414399. The next prime is 20021200414441. The reversal of 20021200414433 is 33441400212002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15357056140864 + 4664144273569 = 3918808^2 + 2159663^2 .

It is a cyclic number.

It is not a de Polignac number, because 20021200414433 - 2³⁸ = 19746322507489 is a prime.

It is a super-2 number, since 2×20021200414433² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20021200413433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010600207216 + 10010600207217.

It is an arithmetic number, because the mean of its divisors is an integer number (10010600207217).

Almost surely, 2^{20021200414433} is an apocalyptic number.

It is an amenable number.

20021200414433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021200414433 is an equidigital number, since it uses as much as digits as its factorization.

20021200414433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20021200414433 its reverse (33441400212002), we get a palindrome (53462600626435).

The spelling of 20021200414433 in words is "twenty trillion, twenty-one billion, two hundred million, four hundred fourteen thousand, four hundred thirty-three".