10010400101021 has 4 divisors (see below), whose sum is σ = 10333316233344. Its totient is φ = 9687483968700.

The previous prime is 10010400100957. The next prime is 10010400101087. The reversal of 10010400101021 is 12010100401001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10010400101021 - 2⁶ = 10010400100957 is a prime.

It is a super-2 number, since 2×10010400101021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10010400100993 and 10010400101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010400107021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161458066115 + ... + 161458066176.

It is an arithmetic number, because the mean of its divisors is an integer number (2583329058336).

Almost surely, 2^{10010400101021} is an apocalyptic number.

It is an amenable number.

10010400101021 is a deficient number, since it is larger than the sum of its proper divisors (322916132323).

10010400101021 is an equidigital number, since it uses as much as digits as its factorization.

10010400101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322916132322.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010400101021 its reverse (12010100401001), we get a palindrome (22020500502022).

The spelling of 10010400101021 in words is "ten trillion, ten billion, four hundred million, one hundred one thousand, twenty-one".