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1220120221202 = 21394388921659
BaseRepresentation
bin10001110000010100110…
…101010001011000010010
311022122100021110020201022
4101300110311101120102
5124442301234034302
62332303202435442
7154102500522041
oct21602465213022
94278307406638
101220120221202
114304a5069083
12178573962b82
138b097b6613c
14430a8786558
1521b112a28a2
hex11c14d51612

1220120221202 has 8 divisors (see below), whose sum is σ = 1843347097200. Its totient is φ = 605671188804.

The previous prime is 1220120221181. The next prime is 1220120221219. The reversal of 1220120221202 is 2021220210221.

It is a happy number.

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

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, 2194460552 + ... + 2194461107.

It is an arithmetic number, because the mean of its divisors is an integer number (230418387150).

Almost surely, 21220120221202 is an apocalyptic number.

1220120221202 is a deficient number, since it is larger than the sum of its proper divisors (623226875998).

1220120221202 is a wasteful number, since it uses less digits than its factorization.

1220120221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388921800.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220120221202 its reverse (2021220210221), we get a palindrome (3241340431423).

The spelling of 1220120221202 in words is "one trillion, two hundred twenty billion, one hundred twenty million, two hundred twenty-one thousand, two hundred two".

Divisors: 1 2 139 278 4388921659 8777843318 610060110601 1220120221202