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1201121000211 = 311172837565497
BaseRepresentation
bin10001011110101000011…
…000111111101100010011
311020211022012001211011210
4101132220120333230103
5124134343434001321
62315442023311203
7152530620022146
oct21365030775423
94224265054153
101201121000211
11423435545150
12174950bab503
138935a90c142
14421c537205d
152139d31db76
hex117a863fb13

1201121000211 has 32 divisors (see below), whose sum is σ = 1856391637248. Its totient is φ = 682710359040.

The previous prime is 1201121000203. The next prime is 1201121000213. The reversal of 1201121000211 is 1120001211021.

It is not a de Polignac number, because 1201121000211 - 23 = 1201121000203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201121000213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3623986 + ... + 3941511.

It is an arithmetic number, because the mean of its divisors is an integer number (58012238664).

Almost surely, 21201121000211 is an apocalyptic number.

1201121000211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201121000211 is a deficient number, since it is larger than the sum of its proper divisors (655270637037).

1201121000211 is a wasteful number, since it uses less digits than its factorization.

1201121000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565811.

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

Adding to 1201121000211 its reverse (1120001211021), we get a palindrome (2321122211232).

The spelling of 1201121000211 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred eleven", and thus it is an aban number.

Divisors: 1 3 11 17 33 51 187 283 561 849 3113 4811 9339 14433 52921 158763 7565497 22696491 83220467 128613449 249661401 385840347 1414747939 2141035651 4244243817 6423106953 23551392161 36397606067 70654176483 109192818201 400373666737 1201121000211