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1201210211201 = 71113292308477
BaseRepresentation
bin10001011110101101101…
…101010011101110000001
311020211112101221012122112
4101132231231103232001
5124140034303224301
62315454531345105
7152533052220410
oct21365555235601
94224471835575
101201210211201
11423480937740
12174976a52195
1389373245c00
14421d3155477
15213a60919bb
hex117adb53b81

1201210211201 has 24 divisors (see below), whose sum is σ = 1621675341504. Its totient is φ = 864007335360.

The previous prime is 1201210211141. The next prime is 1201210211219. The reversal of 1201210211201 is 1021120121021.

It is not a de Polignac number, because 1201210211201 - 230 = 1200136469377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201210271201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46141226 + ... + 46167251.

It is an arithmetic number, because the mean of its divisors is an integer number (67569805896).

Almost surely, 21201210211201 is an apocalyptic number.

1201210211201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201210211201 is a deficient number, since it is larger than the sum of its proper divisors (420465130303).

1201210211201 is a wasteful number, since it uses less digits than its factorization.

1201210211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92308521 (or 92308508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201210211201 its reverse (1021120121021), we get a palindrome (2222330332222).

The spelling of 1201210211201 in words is "one trillion, two hundred one billion, two hundred ten million, two hundred eleven thousand, two hundred one".

Divisors: 1 7 11 13 77 91 143 169 1001 1183 1859 13013 92308477 646159339 1015393247 1200010201 7107752729 8400071407 13200112211 15600132613 92400785477 109200928291 171601458743 1201210211201