10120100210021 has 16 divisors (see below), whose sum is σ = 10683537970560. Its totient is φ = 9559782492480.

The previous prime is 10120100209979. The next prime is 10120100210027. The reversal of 10120100210021 is 12001200102101.

It is a cyclic number.

It is not a de Polignac number, because 10120100210021 - 2¹⁰ = 10120100208997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120100209984 and 10120100210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120100210027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8576195 + ... + 9684591.

It is an arithmetic number, because the mean of its divisors is an integer number (667721123160).

Almost surely, 2^{10120100210021} is an apocalyptic number.

It is an amenable number.

10120100210021 is a deficient number, since it is larger than the sum of its proper divisors (563437760539).

10120100210021 is a wasteful number, since it uses less digits than its factorization.

10120100210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109804.

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

Adding to 10120100210021 its reverse (12001200102101), we get a palindrome (22121300312122).

The spelling of 10120100210021 in words is "ten trillion, one hundred twenty billion, one hundred million, two hundred ten thousand, twenty-one".