211211120020007 has 2 divisors, whose sum is σ = 211211120020008. Its totient is φ = 211211120020006.

The previous prime is 211211120019959. The next prime is 211211120020063. The reversal of 211211120020007 is 700020021112112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211211120020007 - 2⁶ = 211211120019943 is a prime.

It is a super-2 number, since 2×211211120020007² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211211120020907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605560010003 + 105605560010004.

It is an arithmetic number, because the mean of its divisors is an integer number (105605560010004).

Almost surely, 2^{211211120020007} is an apocalyptic number.

211211120020007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211120020007 is an equidigital number, since it uses as much as digits as its factorization.

211211120020007 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 20.

Adding to 211211120020007 its reverse (700020021112112), we get a palindrome (911231141132119).

The spelling of 211211120020007 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred twenty million, twenty thousand, seven".