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1222122020202 = 23330773719509
BaseRepresentation
bin10001110010001100001…
…001100001110101101010
311022211111210012011201000
4101302030021201311222
5130010401214121302
62333233552135430
7154203215525526
oct21621411416552
94284453164630
101222122020202
11431332024316
12178a32237576
138b3267c02a5
144321858cd86
1521bcbdbd31c
hex11c8c261d6a

1222122020202 has 32 divisors (see below), whose sum is σ = 2724673089600. Its totient is φ = 406047050064.

The previous prime is 1222122020177. The next prime is 1222122020239. The reversal of 1222122020202 is 2020202212221.

1222122020202 is a `hidden beast` number, since 1 + 2 + 221 + 220 + 20 + 202 = 666.

It is a super-2 number, since 2×12221220202022 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36843177 + ... + 36876332.

It is an arithmetic number, because the mean of its divisors is an integer number (85146034050).

Almost surely, 21222122020202 is an apocalyptic number.

1222122020202 is an abundant number, since it is smaller than the sum of its proper divisors (1502551069398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222122020202 is a wasteful number, since it uses less digits than its factorization.

1222122020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73719827 (or 73719821 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1222122020202 its reverse (2020202212221), we get a palindrome (3242324232423).

The spelling of 1222122020202 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 307 614 921 1842 2763 5526 8289 16578 73719509 147439018 221158527 442317054 663475581 1326951162 1990426743 3980853486 22631889263 45263778526 67895667789 135791335578 203687003367 407374006734 611061010101 1222122020202