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1222222120222 = 21111354990647
BaseRepresentation
bin10001110010010010000…
…111011000010100011110
311022211202202112210010011
4101302102013120110132
5130011102330321342
62333251525433434
7154205542415365
oct21622207302436
94284682483104
101222222120222
11431383583a04
12178a5b86b87a
138b34146a47c
14432279a87dc
1521bd5a92717
hex11c921d851e

1222222120222 has 8 divisors (see below), whose sum is σ = 1833498185616. Its totient is φ = 611056058352.

The previous prime is 1222222120201. The next prime is 1222222120253. The reversal of 1222222120222 is 2220212222221.

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

It is a super-2 number, since 2×12222221202222 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222222120193 and 1222222120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27473098 + ... + 27517549.

It is an arithmetic number, because the mean of its divisors is an integer number (229187273202).

Almost surely, 21222222120222 is an apocalyptic number.

1222222120222 is a deficient number, since it is larger than the sum of its proper divisors (611276065394).

1222222120222 is a wasteful number, since it uses less digits than its factorization.

1222222120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55001762.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 1222222120222 its reverse (2220212222221), we get a palindrome (3442434342443).

The spelling of 1222222120222 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 11113 22226 54990647 109981294 611111060111 1222222120222