10101220541 has 2 divisors, whose sum is σ = 10101220542. Its totient is φ = 10101220540.

The previous prime is 10101220537. The next prime is 10101220559. The reversal of 10101220541 is 14502210101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9951060025 + 150160516 = 99755^2 + 12254^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101220541 - 2² = 10101220537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10101220501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050610270 + 5050610271.

It is an arithmetic number, because the mean of its divisors is an integer number (5050610271).

Almost surely, 2^10101220541 is an apocalyptic number.

It is an amenable number.

10101220541 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101220541 is an equidigital number, since it uses as much as digits as its factorization.

10101220541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10101220541 its reverse (14502210101), we get a palindrome (24603430642).

The spelling of 10101220541 in words is "ten billion, one hundred one million, two hundred twenty thousand, five hundred forty-one".