10122100121021 has 16 divisors (see below), whose sum is σ = 11574547913088. Its totient is φ = 8671261747200.

The previous prime is 10122100120903. The next prime is 10122100121039. The reversal of 10122100121021 is 12012100122101.

It is a cyclic number.

It is not a de Polignac number, because 10122100121021 - 2¹⁸ = 10122099858877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122100120987 and 10122100121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122100121041) 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, 131483981 + ... + 131560941.

It is an arithmetic number, because the mean of its divisors is an integer number (723409244568).

Almost surely, 2^{10122100121021} is an apocalyptic number.

It is an amenable number.

10122100121021 is a deficient number, since it is larger than the sum of its proper divisors (1452447792067).

10122100121021 is an equidigital number, since it uses as much as digits as its factorization.

10122100121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87172.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10122100121021 its reverse (12012100122101), we get a palindrome (22134200243122).

The spelling of 10122100121021 in words is "ten trillion, one hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, twenty-one".