12201010101 has 32 divisors (see below), whose sum is σ = 21324185600. Its totient is φ = 6747099120.

The previous prime is 12201010057. The next prime is 12201010111. The reversal of 12201010101 is 10101010221.

It is a happy number.

It is not a de Polignac number, because 12201010101 - 2¹⁷ = 12200879029 is a prime.

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

It is a Duffinian number.

12201010101 is a modest number, since divided by 1010101 gives 122 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201010111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1035361 + ... + 1047078.

It is an arithmetic number, because the mean of its divisors is an integer number (666380800).

Almost surely, 2^12201010101 is an apocalyptic number.

It is an amenable number.

12201010101 is a deficient number, since it is larger than the sum of its proper divisors (9123175499).

12201010101 is a wasteful number, since it uses less digits than its factorization.

12201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082486 (or 2082480 counting only the distinct ones).

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

Adding to 12201010101 its reverse (10101010221), we get a palindrome (22302020322).

The spelling of 12201010101 in words is "twelve billion, two hundred one million, ten thousand, one hundred one".