12101222210 has 32 divisors (see below), whose sum is σ = 27157030272. Its totient is φ = 3771809280.

The previous prime is 12101222209. The next prime is 12101222213. The reversal of 12101222210 is 1222210121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (12101222213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7857167 + ... + 7858706.

It is an arithmetic number, because the mean of its divisors is an integer number (848657196).

Almost surely, 2^12101222210 is an apocalyptic number.

12101222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101222210 is an abundant number, since it is smaller than the sum of its proper divisors (15055808062).

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

12101222210 is a wasteful number, since it uses less digits than its factorization.

12101222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715898.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12101222210 its reverse (1222210121), we get a palindrome (13323432331).

The spelling of 12101222210 in words is "twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred ten".