1212120210110 has 16 divisors (see below), whose sum is σ = 2310158518416. Its totient is φ = 456327608448.

The previous prime is 1212120210101. The next prime is 1212120210139. The reversal of 1212120210110 is 110120212121.

It is a super-2 number, since 2×1212120210110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3565059272 + ... + 3565059611.

It is an arithmetic number, because the mean of its divisors is an integer number (144384907401).

Almost surely, 2^{1212120210110} is an apocalyptic number.

1212120210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212120210110 is a deficient number, since it is larger than the sum of its proper divisors (1098038308306).

1212120210110 is a wasteful number, since it uses less digits than its factorization.

1212120210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130118907.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212120210110 its reverse (110120212121), we get a palindrome (1322240422231).

The spelling of 1212120210110 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred ten thousand, one hundred ten".