102202011 has 12 divisors (see below), whose sum is σ = 156309192. Its totient is φ = 64126656.

The previous prime is 102201991. The next prime is 102202021. The reversal of 102202011 is 110202201.

It is not a de Polignac number, because 102202011 - 2⁹ = 102201499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102201984 and 102202002.

It is not an unprimeable number, because it can be changed into a prime (102202021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333841 + ... + 334146.

It is an arithmetic number, because the mean of its divisors is an integer number (13025766).

Almost surely, 2^102202011 is an apocalyptic number.

102202011 is a deficient number, since it is larger than the sum of its proper divisors (54107181).

102202011 is a wasteful number, since it uses less digits than its factorization.

102202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668010 (or 668007 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102202011 is about 10109.5010262624. The cubic root of 102202011 is about 467.5411209981.

Adding to 102202011 its reverse (110202201), we get a palindrome (212404212).

The spelling of 102202011 in words is "one hundred two million, two hundred two thousand, eleven".