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1222010212101 = 371723148825991
BaseRepresentation
bin10001110010000101011…
…111000000111100000101
311022211012222210201211020
4101302011133000330011
5130010134103241401
62333214515501353
7154200360263430
oct21620537007405
94284188721736
101222010212101
114312849a8228
12178a008b7859
138b3095a3c53
14432077a6817
1521bc2184d36
hex11c857c0f05

1222010212101 has 32 divisors (see below), whose sum is σ = 2057370513408. Its totient is φ = 628640981760.

The previous prime is 1222010212097. The next prime is 1222010212139. The reversal of 1222010212101 is 1012120102221.

It is not a de Polignac number, because 1222010212101 - 22 = 1222010212097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010212901) 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, 74404785 + ... + 74421206.

It is an arithmetic number, because the mean of its divisors is an integer number (64292828544).

Almost surely, 21222010212101 is an apocalyptic number.

It is an amenable number.

1222010212101 is a deficient number, since it is larger than the sum of its proper divisors (835360301307).

1222010212101 is a wasteful number, since it uses less digits than its factorization.

1222010212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148826041.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222010212101 its reverse (1012120102221), we get a palindrome (2234130314322).

The spelling of 1222010212101 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred twelve thousand, one hundred one".

Divisors: 1 3 7 17 21 23 51 69 119 161 357 391 483 1173 2737 8211 148825991 446477973 1041781937 2530041847 3125345811 3422997793 7590125541 10268993379 17710292929 23960984551 53130878787 58190962481 71882953653 174572887443 407336737367 1222010212101