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BaseRepresentation
bin10011101001101110…
…010011101111100010
32000110120102221111022
4103221232103233202
5321203340200002
613405501445442
71344622250663
oct235156235742
960416387438
1021101100002
118a49025824
12410a870882
131cb38521b8
14104262d36a
1583776cba2
hex4e9b93be2

21101100002 has 8 divisors (see below), whose sum is σ = 32743086300. Its totient is φ = 10186737904.

The previous prime is 21101099989. The next prime is 21101100061. The reversal of 21101100002 is 20000110112.

Adding to 21101100002 its reverse (20000110112), we get a palindrome (41101210114).

It can be written as a sum of positive squares in 2 ways, for example, as 18746812561 + 2354287441 = 136919^2 + 48521^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181905977 + ... + 181906092.

Almost surely, 221101100002 is an apocalyptic number.

21101100002 is a deficient number, since it is larger than the sum of its proper divisors (11641986298).

21101100002 is a wasteful number, since it uses less digits than its factorization.

21101100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363812100.

The product of its (nonzero) digits is 4, while the sum is 8.

The spelling of 21101100002 in words is "twenty-one billion, one hundred one million, one hundred thousand, two".