10001201022 has 12 divisors (see below), whose sum is σ = 21669268920. Its totient is φ = 3333733668.

The previous prime is 10001201011. The next prime is 10001201123. The reversal of 10001201022 is 22010210001.

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 = 10001200995 and 10001201013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277811122 + ... + 277811157.

It is an arithmetic number, because the mean of its divisors is an integer number (1805772410).

Almost surely, 2^10001201022 is an apocalyptic number.

10001201022 is an abundant number, since it is smaller than the sum of its proper divisors (11668067898).

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

10001201022 is a wasteful number, since it uses less digits than its factorization.

10001201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555622287 (or 555622284 counting only the distinct ones).

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

Adding to 10001201022 its reverse (22010210001), we get a palindrome (32011411023).

The spelling of 10001201022 in words is "ten billion, one million, two hundred one thousand, twenty-two".