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120212012021 = 971383189603
BaseRepresentation
bin110111111110100110…
…0011011101111110101
3102111021210002221022112
41233331030123233311
53432143233341041
6131120304340405
711453652146153
oct1577514335765
9374253087275
10120212012021
1146a88601972
121b36a914705
13b44a0b8c7a
145b655743d3
1531d88d3deb
hex1bfd31bbf5

120212012021 has 8 divisors (see below), whose sum is σ = 121461447744. Its totient is φ = 118962783360.

The previous prime is 120212011973. The next prime is 120212012029. The reversal of 120212012021 is 120210212021.

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

It is a cyclic number.

It is not a de Polignac number, because 120212012021 - 218 = 120211749877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120212011987 and 120212012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212012029) 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, 1296806 + ... + 1386408.

It is an arithmetic number, because the mean of its divisors is an integer number (15182680968).

Almost surely, 2120212012021 is an apocalyptic number.

It is an amenable number.

120212012021 is a deficient number, since it is larger than the sum of its proper divisors (1249435723).

120212012021 is an equidigital number, since it uses as much as digits as its factorization.

120212012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103531.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120212012021 its reverse (120210212021), we get a palindrome (240422224042).

The spelling of 120212012021 in words is "one hundred twenty billion, two hundred twelve million, twelve thousand, twenty-one".

Divisors: 1 97 13831 89603 1341607 8691491 1239299093 120212012021