12120202101 has 32 divisors (see below), whose sum is σ = 18667351296. Its totient is φ = 6851520000.

The previous prime is 12120202097. The next prime is 12120202109. The reversal of 12120202101 is 10120202121.

It is not a de Polignac number, because 12120202101 - 2² = 12120202097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120202109) 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, 4964041 + ... + 4966481.

It is an arithmetic number, because the mean of its divisors is an integer number (583354728).

Almost surely, 2^12120202101 is an apocalyptic number.

It is an amenable number.

12120202101 is a deficient number, since it is larger than the sum of its proper divisors (6547149195).

12120202101 is a wasteful number, since it uses less digits than its factorization.

12120202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893.

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

Adding to 12120202101 its reverse (10120202121), we get a palindrome (22240404222).

It can be divided in two parts, 1212020 and 2101, that added together give a palindrome (1214121).

The spelling of 12120202101 in words is "twelve billion, one hundred twenty million, two hundred two thousand, one hundred one".