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22011102001 = 73179919379
BaseRepresentation
bin10100011111111101…
…101100001100110001
32002210222202211120001
4110133331230030301
5330034320231001
614040050150001
71406312165020
oct243775541461
962728684501
1022011102001
119375769799
124323582301
1320ca23b315
1410cb4308b7
1588c5c3001
hex51ff6c331

22011102001 has 8 divisors (see below), whose sum is σ = 25234902720. Its totient is φ = 18807140688.

The previous prime is 22011101963. The next prime is 22011102059. The reversal of 22011102001 is 10020111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-22011102001 is a prime.

It is a super-2 number, since 2×220111020012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011108001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4957471 + ... + 4961908.

It is an arithmetic number, because the mean of its divisors is an integer number (3154362840).

Almost surely, 222011102001 is an apocalyptic number.

It is an amenable number.

22011102001 is a deficient number, since it is larger than the sum of its proper divisors (3223800719).

22011102001 is an equidigital number, since it uses as much as digits as its factorization.

22011102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9919703.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22011102001 its reverse (10020111022), we get a palindrome (32031213023).

The spelling of 22011102001 in words is "twenty-two billion, eleven million, one hundred two thousand, one".

Divisors: 1 7 317 2219 9919379 69435653 3144443143 22011102001