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2021011210002 = 23858139253607
BaseRepresentation
bin11101011010001101101…
…001111011111100010010
321011012120202010220120010
4131122031221323330102
5231103012332210002
64144234552055350
7266004353562051
oct35321551737422
97135522126503
102021011210002
1170a11915a954
12287828694556
131187715a2705
146db631a0398
15378878e146c
hex1d68da7bf12

2021011210002 has 16 divisors (see below), whose sum is σ = 4042493566272. Its totient is φ = 673591878960.

The previous prime is 2021011209991. The next prime is 2021011210003. The reversal of 2021011210002 is 2000121101202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021011210002.

It is not an unprimeable number, because it can be changed into a prime (2021011210003) 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, 19575318 + ... + 19678289.

It is an arithmetic number, because the mean of its divisors is an integer number (252655847892).

Almost surely, 22021011210002 is an apocalyptic number.

2021011210002 is an abundant number, since it is smaller than the sum of its proper divisors (2021482356270).

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

2021011210002 is a wasteful number, since it uses less digits than its factorization.

2021011210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39262193.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021011210002 its reverse (2000121101202), we get a palindrome (4021132311204).

The spelling of 2021011210002 in words is "two trillion, twenty-one billion, eleven million, two hundred ten thousand, two".

Divisors: 1 2 3 6 8581 17162 25743 51486 39253607 78507214 117760821 235521642 336835201667 673670403334 1010505605001 2021011210002