20010211221043 has 2 divisors, whose sum is σ = 20010211221044. Its totient is φ = 20010211221042.

The previous prime is 20010211220963. The next prime is 20010211221059. The reversal of 20010211221043 is 34012211201002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010211221043 - 2⁴¹ = 17811187965491 is a prime.

It is a super-2 number, since 2×20010211221043² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20010211221043.

It is not a weakly prime, because it can be changed into another prime (20010211221073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005105610521 + 10005105610522.

It is an arithmetic number, because the mean of its divisors is an integer number (10005105610522).

Almost surely, 2^{20010211221043} is an apocalyptic number.

20010211221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010211221043 is an equidigital number, since it uses as much as digits as its factorization.

20010211221043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20010211221043 its reverse (34012211201002), we get a palindrome (54022422422045).

The spelling of 20010211221043 in words is "twenty trillion, ten billion, two hundred eleven million, two hundred twenty-one thousand, forty-three".