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21012200120222 = 2317154272148329
BaseRepresentation
bin1001100011100010010001…
…01110010101111110011110
32202101202011100120020211022
410301301020232111332132
510223230441212321342
6112404512123324142
74266036623052353
oct461611056257636
982352140506738
1021012200120222
1167712511a9913
12243437b380652
13b9559901100c
14528dd2ad662a
152668976ec9d2
hex131c48b95f9e

21012200120222 has 16 divisors (see below), whose sum is σ = 31619791218960. Its totient is φ = 10472274042048.

The previous prime is 21012200120183. The next prime is 21012200120231. The reversal of 21012200120222 is 22202100221012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21012200120222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8706554 + ... + 10854882.

It is an arithmetic number, because the mean of its divisors is an integer number (1976236951185).

Almost surely, 221012200120222 is an apocalyptic number.

21012200120222 is a deficient number, since it is larger than the sum of its proper divisors (10607591098738).

21012200120222 is a wasteful number, since it uses less digits than its factorization.

21012200120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164075.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21012200120222 its reverse (22202100221012), we get a palindrome (43214300341234).

The spelling of 21012200120222 in words is "twenty-one trillion, twelve billion, two hundred million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 317 634 15427 30854 2148329 4296658 4890359 9780718 681020293 1362040586 33142271483 66284542966 10506100060111 21012200120222