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1201001212210 = 25177989426747
BaseRepresentation
bin10001011110100001010…
…000000010100100110010
311020210222211122221221011
4101132201100002210302
5124134122302242320
62315422104021134
7152524633603042
oct21364120024462
94223884587834
101201001212210
114233839686a8
12174918a617aa
138933bb5a877
14421b34ad722
1521392a5b05a
hex117a1402932

1201001212210 has 32 divisors (see below), whose sum is σ = 2317941308160. Its totient is φ = 446418316032.

The previous prime is 1201001212183. The next prime is 1201001212217. The reversal of 1201001212210 is 122121001021.

It is not an unprimeable number, because it can be changed into a prime (1201001212217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44699944 + ... + 44726803.

It is an arithmetic number, because the mean of its divisors is an integer number (72435665880).

Almost surely, 21201001212210 is an apocalyptic number.

1201001212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201001212210 is a deficient number, since it is larger than the sum of its proper divisors (1116940095950).

1201001212210 is a wasteful number, since it uses less digits than its factorization.

1201001212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89426850.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201001212210 its reverse (122121001021), we get a palindrome (1323122213231).

The spelling of 1201001212210 in words is "one trillion, two hundred one billion, one million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 79 85 158 170 395 790 1343 2686 6715 13430 89426747 178853494 447133735 894267470 1520254699 3040509398 7064713013 7601273495 14129426026 15202546990 35323565065 70647130130 120100121221 240200242442 600500606105 1201001212210