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1222221000201 = 31722361291861
BaseRepresentation
bin10001110010010010000…
…011000110111000001001
311022211202200102212201220
4101302102003012320021
5130011102034001301
62333251445432253
7154205530042125
oct21622203067011
94284680385656
101222221000201
11431382989473
12178a5b40b689
138b341167736
1443227796585
1521bd5920936
hex11c920c6e09

1222221000201 has 24 divisors (see below), whose sum is σ = 1806393756864. Its totient is φ = 733540980480.

The previous prime is 1222221000193. The next prime is 1222221000233. The reversal of 1222221000201 is 1020001222221.

It is not a de Polignac number, because 1222221000201 - 23 = 1222221000193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222221000241) 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, 30625990 + ... + 30665871.

It is an arithmetic number, because the mean of its divisors is an integer number (75266406536).

Almost surely, 21222221000201 is an apocalyptic number.

It is an amenable number.

1222221000201 is a deficient number, since it is larger than the sum of its proper divisors (584172756663).

1222221000201 is a wasteful number, since it uses less digits than its factorization.

1222221000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61291921 (or 61291904 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1222221000201 its reverse (1020001222221), we get a palindrome (2242222222422).

The spelling of 1222221000201 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred one", and thus it is an aban number.

Divisors: 1 3 17 23 51 69 289 391 867 1173 6647 19941 61291861 183875583 1041961637 1409712803 3125884911 4229138409 17713347829 23965117651 53140043487 71895352953 407407000067 1222221000201