2121211112107 has 2 divisors, whose sum is σ = 2121211112108. Its totient is φ = 2121211112106.

The previous prime is 2121211112101. The next prime is 2121211112123. The reversal of 2121211112107 is 7012111121212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121211112107 - 2³ = 2121211112099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121211112101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060605556053 + 1060605556054.

It is an arithmetic number, because the mean of its divisors is an integer number (1060605556054).

Almost surely, 2^{2121211112107} is an apocalyptic number.

2121211112107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121211112107 is an equidigital number, since it uses as much as digits as its factorization.

2121211112107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 2121211112107 its reverse (7012111121212), we get a palindrome (9133322233319).

The spelling of 2121211112107 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twelve thousand, one hundred seven".