10202121112 has 32 divisors (see below), whose sum is σ = 19184486400. Its totient is φ = 5086285344.

The previous prime is 10202121053. The next prime is 10202121119. The reversal of 10202121112 is 21112120201.

It is a super-2 number, since 2×10202121112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10202121092 and 10202121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6460339 + ... + 6461917.

It is an arithmetic number, because the mean of its divisors is an integer number (599515200).

Almost surely, 2^10202121112 is an apocalyptic number.

It is an amenable number.

10202121112 is a deficient number, since it is larger than the sum of its proper divisors (8982365288).

10202121112 is a wasteful number, since it uses less digits than its factorization.

10202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415 (or 3411 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10202121112 its reverse (21112120201), we get a palindrome (31314241313).

The spelling of 10202121112 in words is "ten billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".