10211634454021 has 32 divisors (see below), whose sum is σ = 13791854764800. Its totient is φ = 7345031653440.

The previous prime is 10211634453997. The next prime is 10211634454127. The reversal of 10211634454021 is 12045443611201.

It is a happy number.

It is not a de Polignac number, because 10211634454021 - 2⁹ = 10211634453509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211634454421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30012586 + ... + 30350923.

It is an arithmetic number, because the mean of its divisors is an integer number (430995461400).

Almost surely, 2^{10211634454021} is an apocalyptic number.

10211634454021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10211634454021 is a deficient number, since it is larger than the sum of its proper divisors (3580220310779).

10211634454021 is an equidigital number, since it uses as much as digits as its factorization.

10211634454021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60363566 (or 60363540 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 10211634454021 in words is "ten trillion, two hundred eleven billion, six hundred thirty-four million, four hundred fifty-four thousand, twenty-one".