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12210101210 = 257639159839
BaseRepresentation
bin10110101111100011…
…10101101111011010
31011111221110102000202
423113301311233122
5200001241214320
65335332502202
7611402101466
oct132761655732
934457412022
1012210101210
1151a631383a
12244917a962
1311c7847778
1483b8ad4a6
154b6e22b75
hex2d7c75bda

12210101210 has 16 divisors (see below), whose sum is σ = 21981196800. Its totient is φ = 4883370576.

The previous prime is 12210101203. The next prime is 12210101221. The reversal of 12210101210 is 1210101221.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12210101191 and 12210101200.

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, 3530 + ... + 156309.

It is an arithmetic number, because the mean of its divisors is an integer number (1373824800).

Almost surely, 212210101210 is an apocalyptic number.

12210101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210101210 is a deficient number, since it is larger than the sum of its proper divisors (9771095590).

12210101210 is a wasteful number, since it uses less digits than its factorization.

12210101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167485.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12210101210 its sum of digits (11), we get a palindrome (12210101221).

Adding to 12210101210 its reverse (1210101221), we get a palindrome (13420202431).

The spelling of 12210101210 in words is "twelve billion, two hundred ten million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 7639 15278 38195 76390 159839 319678 799195 1598390 1221010121 2442020242 6105050605 12210101210