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12212311002 = 238232473129
BaseRepresentation
bin10110101111110100…
…10001001111011010
31011112002121200021220
423113322101033122
5200002322423002
65335452112510
7611426634153
oct132772211732
934462550256
1012212311002
1151a7593011
122449a65736
1311c813c538
1483bcc692a
154b720c7bc
hex2d7e913da

12212311002 has 16 divisors (see below), whose sum is σ = 24454309440. Its totient is φ = 4065822432.

The previous prime is 12212310997. The next prime is 12212311049. The reversal of 12212311002 is 20011321221.

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, 1231627 + ... + 1241502.

It is an arithmetic number, because the mean of its divisors is an integer number (1528394340).

Almost surely, 212212311002 is an apocalyptic number.

12212311002 is an abundant number, since it is smaller than the sum of its proper divisors (12241998438).

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

12212311002 is a wasteful number, since it uses less digits than its factorization.

12212311002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473957.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12212311002 its reverse (20011321221), we get a palindrome (32223632223).

The spelling of 12212311002 in words is "twelve billion, two hundred twelve million, three hundred eleven thousand, two".

Divisors: 1 2 3 6 823 1646 2469 4938 2473129 4946258 7419387 14838774 2035385167 4070770334 6106155501 12212311002