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2021112201101 = 7487919645131
BaseRepresentation
bin11101011010010011101…
…011001011111110001101
321011012211210011210022012
4131122103223023332031
5231103214210413401
64144253000431005
7266010021152540
oct35322353137615
97135753153265
102021112201101
1170a170168a74
12287856478465
131187894a2366
146db7276c857
15378916de8bb
hex1d693acbf8d

2021112201101 has 16 divisors (see below), whose sum is σ = 2317107701760. Its totient is φ = 1726940755440.

The previous prime is 2021112201089. The next prime is 2021112201131. The reversal of 2021112201101 is 1011022111202.

It is a cyclic number.

It is not a de Polignac number, because 2021112201101 - 234 = 2003932331917 is a prime.

It is a super-2 number, since 2×20211122011012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112201131) 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, 2810306 + ... + 3455436.

It is an arithmetic number, because the mean of its divisors is an integer number (144819231360).

Almost surely, 22021112201101 is an apocalyptic number.

It is an amenable number.

2021112201101 is a deficient number, since it is larger than the sum of its proper divisors (295995500659).

2021112201101 is an equidigital number, since it uses as much as digits as its factorization.

2021112201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646544.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021112201101 its reverse (1011022111202), we get a palindrome (3032134312303).

The spelling of 2021112201101 in words is "two trillion, twenty-one billion, one hundred twelve million, two hundred one thousand, one hundred one".

Divisors: 1 7 487 919 3409 6433 447553 645131 3132871 4515917 314178797 592875389 2199251579 4150127723 288730314443 2021112201101