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21201022020102 = 2343957114096293
BaseRepresentation
bin1001101001000001111110…
…11000101110101000000110
32210001210112200021121122120
410310200333120232220012
510234324143114120402
6113031340504110410
74315503042530241
oct464407730565006
983053480247576
1021201022020102
116834337247a41
122464a97465406
13baa32b548662
145341c63c6258
1526b7496523bc
hex13483f62ea06

21201022020102 has 32 divisors (see below), whose sum is σ = 42573063287040. Its totient is φ = 7038560521440.

The previous prime is 21201022020071. The next prime is 21201022020109. The reversal of 21201022020102 is 20102022010212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21201022020109) 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, 5544133 + ... + 8552160.

It is an arithmetic number, because the mean of its divisors is an integer number (1330408227720).

Almost surely, 221201022020102 is an apocalyptic number.

21201022020102 is an abundant number, since it is smaller than the sum of its proper divisors (21372041266938).

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

21201022020102 is a wasteful number, since it uses less digits than its factorization.

21201022020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14097308.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21201022020102 its reverse (20102022010212), we get a palindrome (41303044030314).

The spelling of 21201022020102 in words is "twenty-one trillion, two hundred one billion, twenty-two million, twenty thousand, one hundred two".

Divisors: 1 2 3 6 439 571 878 1142 1317 1713 2634 3426 250669 501338 752007 1504014 14096293 28192586 42288879 84577758 6188272627 8048983303 12376545254 16097966606 18564817881 24146949909 37129635762 48293899818 3533503670017 7067007340034 10600511010051 21201022020102