212000000021007 has 32 divisors (see below), whose sum is σ = 318367167461376. Its totient is φ = 124318177142400.

The previous prime is 212000000020987. The next prime is 212000000021021. The reversal of 212000000021007 is 700120000000212.

It is not a de Polignac number, because 212000000021007 - 2⁸ = 212000000020751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000000021807) 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, 12546508 + ... + 24112545.

It is an arithmetic number, because the mean of its divisors is an integer number (9948973983168).

Almost surely, 2^{212000000021007} is an apocalyptic number.

212000000021007 is a deficient number, since it is larger than the sum of its proper divisors (106367167440369).

212000000021007 is a wasteful number, since it uses less digits than its factorization.

212000000021007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36664751.

The product of its (nonzero) digits is 56, while the sum is 15.

Adding to 212000000021007 its reverse (700120000000212), we get a palindrome (912120000021219).

The spelling of 212000000021007 in words is "two hundred twelve trillion, twenty-one thousand, seven".