78101010222211 has 16 divisors (see below), whose sum is σ = 79311647923200. Its totient is φ = 76897796291008.

The previous prime is 78101010222127. The next prime is 78101010222223. The reversal of 78101010222211 is 11222201010187.

It is a cyclic number.

It is not a de Polignac number, because 78101010222211 - 2²¹ = 78101008125059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78101010222211.

It is not an unprimeable number, because it can be changed into a prime (78101010222511) 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, 1118458080 + ... + 1118527906.

It is an arithmetic number, because the mean of its divisors is an integer number (4956977995200).

Almost surely, 2^{78101010222211} is an apocalyptic number.

78101010222211 is a deficient number, since it is larger than the sum of its proper divisors (1210637700989).

78101010222211 is a wasteful number, since it uses less digits than its factorization.

78101010222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122738.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 78101010222211 its reverse (11222201010187), we get a palindrome (89323211232398).

The spelling of 78101010222211 in words is "seventy-eight trillion, one hundred one billion, ten million, two hundred twenty-two thousand, two hundred eleven".