206122221602 has 32 divisors (see below), whose sum is σ = 342064762560. Its totient is φ = 92371924480.

The previous prime is 206122221523. The next prime is 206122221607.

206122221602 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (206122221607) 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, 527738 + ... + 831114.

It is an arithmetic number, because the mean of its divisors is an integer number (10689523830).

Almost surely, 2^206122221602 is an apocalyptic number.

206122221602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

206122221602 is a deficient number, since it is larger than the sum of its proper divisors (135942540958).

206122221602 is a wasteful number, since it uses less digits than its factorization.

206122221602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303826.

The product of its (nonzero) digits is 2304, while the sum is 26.

It can be divided in two parts, 206122 and 221602, that added together give a palindrome (427724).

The spelling of 206122221602 in words is "two hundred six billion, one hundred twenty-two million, two hundred twenty-one thousand, six hundred two".