12021101210 has 16 divisors (see below), whose sum is σ = 21758868000. Its totient is φ = 4781576976.

The previous prime is 12021101189. The next prime is 12021101219. The reversal of 12021101210 is 1210112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021101191 and 12021101200.

It is not an unprimeable number, because it can be changed into a prime (12021101219) 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, 3356060 + ... + 3359639.

It is an arithmetic number, because the mean of its divisors is an integer number (1359929250).

Almost surely, 2^12021101210 is an apocalyptic number.

12021101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021101210 is a deficient number, since it is larger than the sum of its proper divisors (9737766790).

12021101210 is a wasteful number, since it uses less digits than its factorization.

12021101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715885.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12021101210 its reverse (1210112021), we get a palindrome (13231213231).

The spelling of 12021101210 in words is "twelve billion, twenty-one million, one hundred one thousand, two hundred ten".