1212102200111 has 32 divisors (see below), whose sum is σ = 1409421772800. Its totient is φ = 1031371137280.

The previous prime is 1212102200093. The next prime is 1212102200129. The reversal of 1212102200111 is 1110022012121.

It is an interprime number because it is at equal distance from previous prime (1212102200093) and next prime (1212102200129).

It is not a de Polignac number, because 1212102200111 - 2³⁰ = 1211028458287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212102200011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109498685 + ... + 109509753.

It is an arithmetic number, because the mean of its divisors is an integer number (44044430400).

Almost surely, 2^{1212102200111} is an apocalyptic number.

1212102200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212102200111 is a deficient number, since it is larger than the sum of its proper divisors (197319572689).

1212102200111 is a wasteful number, since it uses less digits than its factorization.

1212102200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20359.

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

Adding to 1212102200111 its reverse (1110022012121), we get a palindrome (2322124212232).

The spelling of 1212102200111 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred thousand, one hundred eleven".