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20202001012212 = 22315653910754509
BaseRepresentation
bin1001001011111101001010…
…00110000001010111110100
32122112021220012000010212120
410211332211012001113310
510121442144224342322
6110544400544515540
74153355263214505
oct445764506012764
978467805003776
1020202001012212
1164896909a7338
12232334931bbb0
13b3706b042bb6
144dbad3dbcbac
15250778d1ca5c
hex125fa51815f4

20202001012212 has 24 divisors (see below), whose sum is σ = 47138307871200. Its totient is φ = 6733956693216.

The previous prime is 20202001012183. The next prime is 20202001012309. The reversal of 20202001012212 is 21221010020202.

It is a junction number, because it is equal to n+sod(n) for n = 20202001012191 and 20202001012200.

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, 3498787 + ... + 7255722.

It is an arithmetic number, because the mean of its divisors is an integer number (1964096161300).

Almost surely, 220202001012212 is an apocalyptic number.

It is an amenable number.

20202001012212 is an abundant number, since it is smaller than the sum of its proper divisors (26936306858988).

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

20202001012212 is a wasteful number, since it uses less digits than its factorization.

20202001012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911055 (or 10911053 counting only the distinct ones).

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

Adding to 20202001012212 its reverse (21221010020202), we get a palindrome (41423011032414).

The spelling of 20202001012212 in words is "twenty trillion, two hundred two billion, one million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 156539 313078 469617 626156 939234 1878468 10754509 21509018 32263527 43018036 64527054 129054108 1683500084351 3367000168702 5050500253053 6734000337404 10101000506106 20202001012212