2102012220071 has 16 divisors (see below), whose sum is σ = 2277418520160. Its totient is φ = 1933318886400.

The previous prime is 2102012220023. The next prime is 2102012220073. The reversal of 2102012220071 is 1700222102012.

It is a de Polignac number, because none of the positive numbers 2^k-2102012220071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102012220073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950130 + ... + 3592671.

It is an arithmetic number, because the mean of its divisors is an integer number (142338657510).

Almost surely, 2^{2102012220071} is an apocalyptic number.

2102012220071 is a deficient number, since it is larger than the sum of its proper divisors (175406300089).

2102012220071 is a wasteful number, since it uses less digits than its factorization.

2102012220071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543314.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 2102012220071 its reverse (1700222102012), we get a palindrome (3802234322083).

The spelling of 2102012220071 in words is "two trillion, one hundred two billion, twelve million, two hundred twenty thousand, seventy-one".