102001222011 has 64 divisors (see below), whose sum is σ = 165308774400. Its totient is φ = 55259283456.

The previous prime is 102001221967. The next prime is 102001222111. The reversal of 102001222011 is 110222100201.

It is not a de Polignac number, because 102001222011 - 2²⁵ = 101967667579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102001222111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 943915 + ... + 1046411.

It is an arithmetic number, because the mean of its divisors is an integer number (2582949600).

Almost surely, 2^102001222011 is an apocalyptic number.

102001222011 is a deficient number, since it is larger than the sum of its proper divisors (63307552389).

102001222011 is a wasteful number, since it uses less digits than its factorization.

102001222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102628.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102001222011 its reverse (110222100201), we get a palindrome (212223322212).

The spelling of 102001222011 in words is "one hundred two billion, one million, two hundred twenty-two thousand, eleven".