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2100021121012 = 2225115269136987
BaseRepresentation
bin11110100011110011000…
…000110100111111110100
321102202112002020020210111
4132203303000310333310
5233401320401333022
64244423020432404
7304502324001613
oct36436300647764
97382462206714
102100021121012
1173a6831a2471
1229abb89a8704
1312305355a549
14738da64b87a
153995deda477
hex1e8f3034ff4

2100021121012 has 24 divisors (see below), whose sum is σ = 3689947124640. Its totient is φ = 1045751124000.

The previous prime is 2100021120983. The next prime is 2100021121049. The reversal of 2100021121012 is 2101211200012.

It is a junction number, because it is equal to n+sod(n) for n = 2100021120983 and 2100021121001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15261583 + ... + 15398569.

It is an arithmetic number, because the mean of its divisors is an integer number (153747796860).

Almost surely, 22100021121012 is an apocalyptic number.

It is an amenable number.

2100021121012 is a deficient number, since it is larger than the sum of its proper divisors (1589926003628).

2100021121012 is a wasteful number, since it uses less digits than its factorization.

2100021121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152511 (or 152509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2100021121012 its reverse (2101211200012), we get a palindrome (4201232321024).

The spelling of 2100021121012 in words is "two trillion, one hundred billion, twenty-one million, one hundred twenty-one thousand, twelve".

Divisors: 1 2 4 251 502 1004 15269 30538 61076 136987 273974 547948 3832519 7665038 15330076 34383737 68767474 137534948 2091654503 4183309006 8366618012 525005280253 1050010560506 2100021121012