162210012261 has 16 divisors (see below), whose sum is σ = 238146905088. Its totient is φ = 97390319600.

The previous prime is 162210012229. The next prime is 162210012287.

162210012261 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 162210012261 - 2⁵ = 162210012229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162210012661) 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, 22965885 + ... + 22972946.

It is an arithmetic number, because the mean of its divisors is an integer number (14884181568).

Almost surely, 2^162210012261 is an apocalyptic number.

162210012261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162210012261 is a deficient number, since it is larger than the sum of its proper divisors (75936892827).

162210012261 is a wasteful number, since it uses less digits than its factorization.

162210012261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45938952.

The product of its (nonzero) digits is 576, while the sum is 24.

It can be divided in two parts, 1622100 and 12261, that added together give a palindrome (1634361).

The spelling of 162210012261 in words is "one hundred sixty-two billion, two hundred ten million, twelve thousand, two hundred sixty-one".