10122021101 has 4 divisors (see below), whose sum is σ = 10226371932. Its totient is φ = 10017670272.

The previous prime is 10122021089. The next prime is 10122021103. The reversal of 10122021101 is 10112022101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10112022101 = 67 ⋅150925703.

It can be written as a sum of positive squares in 2 ways, for example, as 2527072900 + 7594948201 = 50270^2 + 87149^2 .

It is a cyclic number.

It is not a de Polignac number, because 10122021101 - 2²⁶ = 10054912237 is a prime.

It is a super-2 number, since 2×10122021101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122021103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52175270 + ... + 52175463.

It is an arithmetic number, because the mean of its divisors is an integer number (2556592983).

Almost surely, 2^10122021101 is an apocalyptic number.

It is an amenable number.

10122021101 is a deficient number, since it is larger than the sum of its proper divisors (104350831).

10122021101 is an equidigital number, since it uses as much as digits as its factorization.

10122021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104350830.

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

Adding to 10122021101 its reverse (10112022101), we get a palindrome (20234043202).

The spelling of 10122021101 in words is "ten billion, one hundred twenty-two million, twenty-one thousand, one hundred one".