71002111210022 has 4 divisors (see below), whose sum is σ = 106503166815036. Its totient is φ = 35501055605010.

The previous prime is 71002111209943. The next prime is 71002111210049. The reversal of 71002111210022 is 22001211120017.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 71002111209976 and 71002111210003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17750527802504 + ... + 17750527802507.

It is an arithmetic number, because the mean of its divisors is an integer number (26625791703759).

Almost surely, 2^{71002111210022} is an apocalyptic number.

71002111210022 is a deficient number, since it is larger than the sum of its proper divisors (35501055605014).

71002111210022 is a wasteful number, since it uses less digits than its factorization.

71002111210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35501055605013.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 71002111210022 its reverse (22001211120017), we get a palindrome (93003322330039).

The spelling of 71002111210022 in words is "seventy-one trillion, two billion, one hundred eleven million, two hundred ten thousand, twenty-two".