10101028027021 has 2 divisors, whose sum is σ = 10101028027022. Its totient is φ = 10101028027020.

The previous prime is 10101028027001. The next prime is 10101028027061. The reversal of 10101028027021 is 12072082010101.

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., 5879359218121 + 4221668808900 = 2424739^2 + 2054670^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101028027021 - 2¹⁷ = 10101027895949 is a prime.

It is a super-2 number, since 2×10101028027021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10101028027001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050514013510 + 5050514013511.

It is an arithmetic number, because the mean of its divisors is an integer number (5050514013511).

Almost surely, 2^{10101028027021} is an apocalyptic number.

It is an amenable number.

10101028027021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101028027021 is an equidigital number, since it uses as much as digits as its factorization.

10101028027021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 10101028027021 in words is "ten trillion, one hundred one billion, twenty-eight million, twenty-seven thousand, twenty-one".