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10211011212 = 2233722997773
BaseRepresentation
bin10011000001001111…
…11010101010001100
3222100121211010002110
421200213322222030
5131403004324322
64405121224020
7511016106663
oct114047725214
928317733073
1010211011212
11436a938946
121b8b792010
13c6962b68c
146cc1addda
153eb68ec0c
hex2609faa8c

10211011212 has 24 divisors (see below), whose sum is σ = 24469631536. Its totient is φ = 3311679168.

The previous prime is 10211011183. The next prime is 10211011219. The reversal of 10211011212 is 21211011201.

Adding to 10211011212 its reverse (21211011201), we get a palindrome (31422022413).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10211011219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11498443 + ... + 11499330.

Almost surely, 210211011212 is an apocalyptic number.

10211011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10211011212 is an abundant number, since it is smaller than the sum of its proper divisors (14258620324).

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

10211011212 is a wasteful number, since it uses less digits than its factorization.

10211011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22997817 (or 22997815 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The spelling of 10211011212 in words is "ten billion, two hundred eleven million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 22997773 45995546 68993319 91991092 137986638 275973276 850917601 1701835202 2552752803 3403670404 5105505606 10211011212