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2020122211121 = 71571838145779
BaseRepresentation
bin11101011001011000101…
…010101011001100110001
321011010021210100002100122
4131121120222223030301
5231044202241223441
64144010433500025
7265643340322430
oct35313052531461
97133253302318
102020122211121
11709802361933
1228761aa11615
1311865c35b481
146dabb0a9117
153783483934b
hex1d658aab331

2020122211121 has 8 divisors (see below), whose sum is σ = 2323416265920. Its totient is φ = 1720504448208.

The previous prime is 2020122211097. The next prime is 2020122211123. The reversal of 2020122211121 is 1211122210202.

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

It is not a de Polignac number, because 2020122211121 - 222 = 2020118016817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020122211121.

It is not an unprimeable number, because it can be changed into a prime (2020122211123) 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, 919071791 + ... + 919073988.

It is an arithmetic number, because the mean of its divisors is an integer number (290427033240).

Almost surely, 22020122211121 is an apocalyptic number.

It is an amenable number.

2020122211121 is a deficient number, since it is larger than the sum of its proper divisors (303294054799).

2020122211121 is a wasteful number, since it uses less digits than its factorization.

2020122211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838145943.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2020122211121 its reverse (1211122210202), we get a palindrome (3231244421323).

The spelling of 2020122211121 in words is "two trillion, twenty billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-one".

Divisors: 1 7 157 1099 1838145779 12867020453 288588887303 2020122211121