20220211021501 has 2 divisors, whose sum is σ = 20220211021502. Its totient is φ = 20220211021500.

The previous prime is 20220211021499. The next prime is 20220211021511. The reversal of 20220211021501 is 10512011202202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20071959070276 + 148251951225 = 4480174^2 + 385035^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220211021501 - 2¹ = 20220211021499 is a prime.

Together with 20220211021499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220211021511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110105510750 + 10110105510751.

It is an arithmetic number, because the mean of its divisors is an integer number (10110105510751).

Almost surely, 2^{20220211021501} is an apocalyptic number.

It is an amenable number.

20220211021501 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220211021501 is an equidigital number, since it uses as much as digits as its factorization.

20220211021501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 20220211021501 its reverse (10512011202202), we get a palindrome (30732222223703).

The spelling of 20220211021501 in words is "twenty trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand, five hundred one".