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2211212310020 = 225715794373643
BaseRepresentation
bin100000001011010110100…
…001100011011000000100
321211101112012001220021222
4200023112201203120010
5242212030322410040
64411452241455512
7315516621342410
oct40132641433004
97741465056258
102211212310020
117828517804aa
122b866a641598
131306937852cc
1479047b09d40
153c7ba97cbb5
hex202d6863604

2211212310020 has 24 divisors (see below), whose sum is σ = 5306909544384. Its totient is φ = 758129934816.

The previous prime is 2211212309981. The next prime is 2211212310029. The reversal of 2211212310020 is 200132121122.

It is not an unprimeable number, because it can be changed into a prime (2211212310029) 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, 7897186682 + ... + 7897186961.

It is an arithmetic number, because the mean of its divisors is an integer number (221121231016).

Almost surely, 22211212310020 is an apocalyptic number.

2211212310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211212310020 is an abundant number, since it is smaller than the sum of its proper divisors (3095697234364).

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

2211212310020 is a wasteful number, since it uses less digits than its factorization.

2211212310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15794373659 (or 15794373657 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2211212310020 its reverse (200132121122), we get a palindrome (2411344431142).

The spelling of 2211212310020 in words is "two trillion, two hundred eleven billion, two hundred twelve million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15794373643 31588747286 63177494572 78971868215 110560615501 157943736430 221121231002 315887472860 442242462004 552803077505 1105606155010 2211212310020