212101220039 has 2 divisors, whose sum is σ = 212101220040. Its totient is φ = 212101220038.

The previous prime is 212101220003. The next prime is 212101220053. The reversal of 212101220039 is 930022101212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212101220039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212101219996 and 212101220023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212101220839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050610019 + 106050610020.

It is an arithmetic number, because the mean of its divisors is an integer number (106050610020).

Almost surely, 2^212101220039 is an apocalyptic number.

212101220039 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101220039 is an equidigital number, since it uses as much as digits as its factorization.

212101220039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 212101220039 in words is "two hundred twelve billion, one hundred one million, two hundred twenty thousand, thirty-nine".