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11121212021020 = 225556060601051
BaseRepresentation
bin1010000111010101101111…
…1001000101100100011100
31110101011210101110100002021
42201311123321011210130
52424202220234133040
635353003025505524
72225324000311603
oct241653371054434
943334711410067
1011121212021020
1135a85302903a2
1212b74474a22a4
1362895875130a
142a63ab85aa3a
1514444cc7224a
hexa1d5be4591c

11121212021020 has 12 divisors (see below), whose sum is σ = 23354545244184. Its totient is φ = 4448484808400.

The previous prime is 11121212020999. The next prime is 11121212021041. The reversal of 11121212021020 is 2012021212111.

11121212021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11121212020999) and next prime (11121212021041).

It is a junction number, because it is equal to n+sod(n) for n = 11121212020985 and 11121212021003.

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, 278030300506 + ... + 278030300545.

It is an arithmetic number, because the mean of its divisors is an integer number (1946212103682).

Almost surely, 211121212021020 is an apocalyptic number.

11121212021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121212021020 is an abundant number, since it is smaller than the sum of its proper divisors (12233333223164).

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

11121212021020 is a wasteful number, since it uses less digits than its factorization.

11121212021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556060601060 (or 556060601058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11121212021020 its reverse (2012021212111), we get a palindrome (13133233233131).

The spelling of 11121212021020 in words is "eleven trillion, one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 556060601051 1112121202102 2224242404204 2780303005255 5560606010510 11121212021020