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1222122211201 = 14876917118819
BaseRepresentation
bin10001110010001100001…
…010010000011110000001
311022211111210112212201001
4101302030022100132001
5130010401241224301
62333234000212001
7154203220252423
oct21621412203601
94284453485631
101222122211201
11431332144871
12178a3230a001
138b3268591c8
14432185dc813
1521bcbe09c01
hex11c8c290781

1222122211201 has 8 divisors (see below), whose sum is σ = 1223131178880. Its totient is φ = 1221113497968.

The previous prime is 1222122211187. The next prime is 1222122211207. The reversal of 1222122211201 is 1021122212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222122211201 - 211 = 1222122209153 is a prime.

It is a super-3 number, since 3×12221222112013 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222122211207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10226170 + ... + 10344988.

It is an arithmetic number, because the mean of its divisors is an integer number (152891397360).

Almost surely, 21222122211201 is an apocalyptic number.

It is an amenable number.

1222122211201 is a deficient number, since it is larger than the sum of its proper divisors (1008967679).

1222122211201 is a wasteful number, since it uses less digits than its factorization.

1222122211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127223.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222122211201 its reverse (1021122212221), we get a palindrome (2243244423422).

The spelling of 1222122211201 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, two hundred one".

Divisors: 1 1487 6917 118819 10285579 176683853 821871023 1222122211201