12201011010 has 96 divisors (see below), whose sum is σ = 33646045680. Its totient is φ = 3056984064.

The previous prime is 12201011003. The next prime is 12201011021. The reversal of 12201011010 is 1011010221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1332323001 + 10868688009 = 36501^2 + 104253^2 .

It is a super-2 number, since 2×12201011010² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12201010983 and 12201011001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 931386 + ... + 944394.

Almost surely, 2^12201011010 is an apocalyptic number.

12201011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201011010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16823022840).

12201011010 is an abundant number, since it is smaller than the sum of its proper divisors (21445034670).

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

12201011010 is a wasteful number, since it uses less digits than its factorization.

12201011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13652 (or 13649 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12201011010 its reverse (1011010221), we get a palindrome (13212021231).

The spelling of 12201011010 in words is "twelve billion, two hundred one million, eleven thousand, ten".