1212210102111 has 16 divisors (see below), whose sum is σ = 1672400163840. Its totient is φ = 780204490560.

The previous prime is 1212210102109. The next prime is 1212210102113. The reversal of 1212210102111 is 1112010122121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212210102109) and next prime (1212210102113).

It is not a de Polignac number, because 1212210102111 - 2¹ = 1212210102109 is a prime.

It is a super-2 number, since 2×1212210102111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210102113) 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, 15515350 + ... + 15593283.

It is an arithmetic number, because the mean of its divisors is an integer number (104525010240).

Almost surely, 2^{1212210102111} is an apocalyptic number.

1212210102111 is a deficient number, since it is larger than the sum of its proper divisors (460190061729).

1212210102111 is a wasteful number, since it uses less digits than its factorization.

1212210102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31109086.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1212210102111 its reverse (1112010122121), we get a palindrome (2324220224232).

The spelling of 1212210102111 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred two thousand, one hundred eleven".