10202111112 has 32 divisors (see below), whose sum is σ = 25518588480. Its totient is φ = 3398928960.

The previous prime is 10202111107. The next prime is 10202111119. The reversal of 10202111112 is 21111120201.

It is a super-2 number, since 2×10202111112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10202111119) 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, 63564 + ... + 156347.

It is an arithmetic number, because the mean of its divisors is an integer number (797455890).

Almost surely, 2^10202111112 is an apocalyptic number.

10202111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10202111112 is an abundant number, since it is smaller than the sum of its proper divisors (15316477368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10202111112 is a wasteful number, since it uses less digits than its factorization.

10202111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221853 (or 221849 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10202111112 its reverse (21111120201), we get a palindrome (31313231313).

The spelling of 10202111112 in words is "ten billion, two hundred two million, one hundred eleven thousand, one hundred twelve".