20220211021511 has 2 divisors, whose sum is σ = 20220211021512. Its totient is φ = 20220211021510.

The previous prime is 20220211021501. The next prime is 20220211021561. The reversal of 20220211021511 is 11512011202202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20220211021511 - 2³⁴ = 20203031152327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220211021501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110105510755 + 10110105510756.

It is an arithmetic number, because the mean of its divisors is an integer number (10110105510756).

Almost surely, 2^{20220211021511} is an apocalyptic number.

20220211021511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220211021511 is an equidigital number, since it uses as much as digits as its factorization.

20220211021511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 20220211021511 its reverse (11512011202202), we get a palindrome (31732222223713).

The spelling of 20220211021511 in words is "twenty trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand, five hundred eleven".