1212222120110 has 16 divisors (see below), whose sum is σ = 2276869373856. Its totient is φ = 463806724128.

The previous prime is 1212222120103. The next prime is 1212222120119. The reversal of 1212222120110 is 110212222121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212222120119) 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, 2635265249 + ... + 2635265708.

It is an arithmetic number, because the mean of its divisors is an integer number (142304335866).

Almost surely, 2^{1212222120110} is an apocalyptic number.

1212222120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212222120110 is a deficient number, since it is larger than the sum of its proper divisors (1064647253746).

1212222120110 is a wasteful number, since it uses less digits than its factorization.

1212222120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270530987.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212222120110 its reverse (110212222121), we get a palindrome (1322434342231).

The spelling of 1212222120110 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty thousand, one hundred ten".