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20210012212 = 2213439038467
BaseRepresentation
bin10010110100100111…
…000101000000110100
31221011110200222211211
4102310213011000310
5312342230342322
613141230411204
71313552161255
oct226447050064
957143628754
1020210012212
118631030335
123b00360b04
131ba1059210
14d9a152b2c
157d4401b77
hex4b49c5034

20210012212 has 24 divisors (see below), whose sum is σ = 38973874016. Its totient is φ = 9110773728.

The previous prime is 20210012201. The next prime is 20210012237. The reversal of 20210012212 is 21221001202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20210012192 and 20210012201.

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, 4516998 + ... + 4521469.

Almost surely, 220210012212 is an apocalyptic number.

It is an amenable number.

20210012212 is a deficient number, since it is larger than the sum of its proper divisors (18763861804).

20210012212 is a wasteful number, since it uses less digits than its factorization.

20210012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9038527 (or 9038525 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20210012212 its reverse (21221001202), we get a palindrome (41431013414).

The spelling of 20210012212 in words is "twenty billion, two hundred ten million, twelve thousand, two hundred twelve".

Divisors: 1 2 4 13 26 43 52 86 172 559 1118 2236 9038467 18076934 36153868 117500071 235000142 388654081 470000284 777308162 1554616324 5052503053 10105006106 20210012212