10201220634 has 32 divisors (see below), whose sum is σ = 23566458816. Its totient is φ = 2909438720.

The previous prime is 10201220621. The next prime is 10201220663. The reversal of 10201220634 is 43602210201.

It is a self number, because there is not a number n which added to its sum of digits gives 10201220634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4544877 + ... + 4547120.

It is an arithmetic number, because the mean of its divisors is an integer number (736451838).

Almost surely, 2^10201220634 is an apocalyptic number.

10201220634 is an abundant number, since it is smaller than the sum of its proper divisors (13365238182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10201220634 is a wasteful number, since it uses less digits than its factorization.

10201220634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092030.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 10201220634 its reverse (43602210201), we get a palindrome (53803430835).

The spelling of 10201220634 in words is "ten billion, two hundred one million, two hundred twenty thousand, six hundred thirty-four".