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2112112021201 = 71349147270921
BaseRepresentation
bin11110101111000011101…
…011111100111011010001
321110220201201101121202121
4132233003223330323101
5234101101134134301
64254142454414241
7305411050650520
oct36570353747321
97426651347677
102112112021201
1174481819a766
122a1412061381
1312422c49a960
147432636c4b7
1539e1a7143a1
hex1ebc3afced1

2112112021201 has 16 divisors (see below), whose sum is σ = 2604816885888. Its totient is φ = 1667718057600.

The previous prime is 2112112021193. The next prime is 2112112021231. The reversal of 2112112021201 is 1021202112112.

It is not a de Polignac number, because 2112112021201 - 23 = 2112112021193 is a prime.

It is a super-2 number, since 2×21121120212012 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112112021231) 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, 23590780 + ... + 23680141.

It is an arithmetic number, because the mean of its divisors is an integer number (162801055368).

Almost surely, 22112112021201 is an apocalyptic number.

It is an amenable number.

2112112021201 is a deficient number, since it is larger than the sum of its proper divisors (492704864687).

2112112021201 is a wasteful number, since it uses less digits than its factorization.

2112112021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47271432.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2112112021201 its reverse (1021202112112), we get a palindrome (3133314133313).

The spelling of 2112112021201 in words is "two trillion, one hundred twelve billion, one hundred twelve million, twenty-one thousand, two hundred one".

Divisors: 1 7 13 91 491 3437 6383 44681 47270921 330896447 614521973 4301653811 23210022211 162470155477 301730288743 2112112021201