10201122021 has 16 divisors (see below), whose sum is σ = 14403110400. Its totient is φ = 6404228208.

The previous prime is 10201122011. The next prime is 10201122047. The reversal of 10201122021 is 12022110201.

It is not a de Polignac number, because 10201122021 - 2⁷ = 10201121893 is a prime.

It is a super-2 number, since 2×10201122021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10201121988 and 10201122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201122011) 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, 526311 + ... + 545348.

It is an arithmetic number, because the mean of its divisors is an integer number (900194400).

Almost surely, 2^10201122021 is an apocalyptic number.

It is an amenable number.

10201122021 is a deficient number, since it is larger than the sum of its proper divisors (4201988379).

10201122021 is a wasteful number, since it uses less digits than its factorization.

10201122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071848.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10201122021 its reverse (12022110201), we get a palindrome (22223232222).

The spelling of 10201122021 in words is "ten billion, two hundred one million, one hundred twenty-two thousand, twenty-one".